Dometic or GE RV A/C Silencer DA100

(60 customer reviews)


If your inside ceiling assembly looks like this,
then the DA100 will work for you.
(Watch Install and Review from “The Fit RV”)

Ceiling Assembly for DA100Ceiling Assembly for DA100Ceiling Assembly for new DA400GE RARED1A - RV AC Interior Duct - Electronic Control Ducted

SKU: DA100 Category: Tags: ,


The WackO Products DA100 is an air conditioner silencer kit that allows you to run your RV A/C unit without all the noise. Never try listening to your TV over your air conditioner or being kept awake by the unbearable noise ever again.

• Designed to fit Dometic or GE brand air conditioners with a ducted system. (If you use a Coleman A/C model, see part #CA200)
• Installs easily in under 15 minutes with a screwdriver, no drilling required.
• Recycled cotton duct liner gives superior acoustic and thermal performance.
• Noise reduction ranges from 8-10 decibels (dB).
• Electrostatic air filter helps eliminate dust, lint, pollen, and other pollutants in the air.
• The air filter is a 4 layer weave design, is nonporous, mildew resistant, and does not degrade over time.
• The filter can easily be cleaned with a vacuum cleaner, or optionally removed and washed.
• Clean the outer casing with a damp cloth or gentle cleanser.
• Dimensions: 17" x 17" x 2.25".
• Weight: 2.93 lbs.

Install and Review Video

Watch as James from The Fit RV installs and puts the RV A/C Silencer to the test in his new Winnebago EKKO.

Additional information

Weight 68 oz
Dimensions 18.75 × 17.75 × 2.75 in

60 reviews for Dometic or GE RV A/C Silencer DA100

  1. mark massingham

    Easy install, but massive difference. I measured around 78 decibels about 10 ft away pre fitment and around 65 after. You can now hold a conversation. Will now order 2nd one for the bedroom

  2. Rod Beeche (verified owner)

    I was apprehensive before I order the RV A/C Silencer but after reading the users reviews I made my decision on them and I couldn’t be happier that I did.
    The installation was easy and it took me about 1 hour from start to finish. I have the Dometic unit in my coach and the results are amazing, when I tried it I was so happy with the end results the unit is much more quieter and my wife thinks the results are incredible.
    I will be ordering a second one for the rear A/C unit. Thank you Wacko Products and for great American ingenuity.

  3. Jeff Franck (verified owner)

    I don’t often leave reviews, but I wanted to take a minute to thank you for your prompt service and simple product design. I experienced an impressive reduction in noise of over 10 decibels, from the low 70s to the low 60s. Although I would have enjoyed paying less for your well designed solution, the cost was modest when compared to replacing the entire unit. Your instructions were easy to follow and the supplemental video was helpful as well. I appreciated the quality of materials and your attention to details, like more than enough tape to do the job. Well done.

  4. Ray Colbert (verified owner)

    Installed today in my motorhome. My wife helped me. It took us about an hour start to finish. Reduced the jet airplane noise by about 35-40 percent.
    Instructions are simple and tools needed are minimal. An electric screw gun is very helpful.

  5. Chance Kolschefsky (verified owner)

    This thing is awesome!!! Glad I didn’t wait after finding out about them! Surprised how much quieter it makes the AC.

  6. Brian M. Polka (verified owner)

    I wasn’t sure at first, but after installing this product you can tell a very noticeable decrease in the sound of the Dometic unit. Not only significantly quieter, but also it seems more efficient. Installation was less than 30 minutes with much of the time just trying to get the backing off the foil tape. The loss of the “cold air dump” feature is not a big deal to me as we rarely used that feature so all in all, very happy with the purchase and well worth the investment.

    Note: Have a 2020 Keystone Passport 3400QD and there is an issue in that height of the RV A/C Silencer coming from the ceiling is greater than the stock unit which makes the cabinet about the TV unable to fully open. If the unit was quarter of an inch shorter it would be fine, but unfortunately it just barley hits the corner. Not going to give a negative mark to the product because that’s not their fault, but just something to keep mindful of if you have a cabinet door that opens under the stock Dometic A/C unit.

  7. Jay Peabody (verified owner)

    Very happy with Dometic RV A/C Silencer!
    Installed last weekend in about 30 minutes. The noise is cut down by over half….
    Don’t think twice about purchasing this product.

  8. Mark Waller

    I have a Grand Design Imagine 2650RK (opposing slides) and it made a substantial difference in noise reduction. We now have air conditioning in the bedroom. Very happy with the results.

  9. Janis Robinette (verified owner)

    We bought the silencer last year. LOVE IT! So much quieter, and now a/c actually comes through vents in bedroom. Great product. I will tell everyone I know!

  10. Ron Herman (verified owner)

    I have to say I was skeptical about this product when I first saw it. I purchased one to check it out and see if it works, well, I was surprised! It works great and we even noticed the difference in flow through the ductwork. Looks like I will be ordering a second one!

  11. DOUG A MILLER (verified owner)

    Purchased this about a year ago. Installed in less than an hour (after waiting for Covid lockdowns to end in our area). Used this throughout the summer and fall camping season, including a 3 week trip to the southwest (temps over 100-110 for 2 weeks in that period). My wife had originally thought this was a dumb purchase – changed her mind quickly after realizing the 10 dB or so drop in sound. At the end of our trip, she was touting the benefits of this to other campers. Hope you got some sales!

  12. Charles A. Barnes (verified owner)

    Just installed this wonderful system. Good engineering, quality materials and easy to understand instructions. The best part is it WORKS. You will be amazed how much quieter you AC/heatpump will be!

  13. Gail Brackeen (verified owner)

    Installed on 2020 Wolf Pack. System much quieter. Installed in 35 minutes. Very easy. Love it.

  14. Christian Odell

    I installed the silencer on our 2016 Salem 30KQBSS and there is a big difference in the main living area. Sitting at the dinette you can tell it is much quieter. Using a free app on my IPhone it showed 6-7 Db quieter than before the installation. I am very glad we installed the silencer we always complained how noisy the A/C was in the main living area. It also made a difference in the noise level in the master bedroom and the bunkroom.

  15. Kristofer Beatty (verified owner)

    Installed my DA100 RV AC Silencer yesterday evening in our 2021 Coachmen Leprechaun 319mb and O.M.G. what an immediate difference. The noise from the AC was cut in half and the cool air actually blow out of the ceiling ducts so well it made a hanging “Welcome” flag move in the air movement. The other problem the silencer corrected is with the AC unit in “AUTO”, the blower in our AC unit used to turn off while the compressor kept running, then a couple of seconds later, the blower would start back up again, only to stop a few seconds later, and so on, and so on. That stopped immediately. I was about to replace our current AC unit and add one to the bedroom, but now I am going hold off on that project.

  16. Mark Peterson

    I had higher hopes for this product based on reviews so I bought one. $200 later – here’s my actual owners review. I have a 2018 Grand Design Imagine, around 27’ with one slide and the AC right in the middle of the living area – and right in front of the TV. With a garden variety db app on my iPhone 7 and the iPhone on the couch -with the system off I recorded around 45-46db ambient noise inside the camper. With the original Dometic shroud and the blow-through vent OPEN I recorded about 70-71db. With the blow through CLOSED around 67-68db. Now with the Wacko installed – 62-63db. Quieter? Yes. $200 worth? No, not really. It does quiet the AC down but I don’t know if the juice is worth the squeeze as they say. $100? Sure. But you still have to turn the TV up and down between AC cycles and you still have to elevate your voice to talk someone 5′ away from you. On the plus side – it was easy to install, pretty nice quality parts and easy instructions,.

  17. Elizabeth Parton (verified owner)

    Cannot BELIEVE THE Change! I bought this just hoping for some difference. I am a 60+ female and installed myself. Several weeks later I was having a staycation in my yard and turned on the air and was watching tv. OH MY! I could not believe the change…I did not have to turn the volume up and down! I am so glad I got this! THANK YOU!

  18. Kenneth Harris (verified owner)

    What a drastic change in the noise level. Maybe my best camper accessory purchase to date. Really easy install and I’m super pleased.

  19. William Buffa (verified owner)

    Saw it in trailer life magazine and bought it over the winter. With the covid scare I only got to try it out this weekend, I was impressed! I could watch TV and carry on a conversation without the a/c drowning me out, and it was easy to install. I would definitely recommend this product!

  20. Braden Shoupe (verified owner)

    Installed this adapter in about 15 minutes prior to our recent outing. Not only a tremendous drop in noise, but the airflow through the ducts improved so much that the entire trailer stayed cool in 95 degree plus heat.
    I should have done this sooner.

  21. Roger S Buhovecky (verified owner)

    I originally gave this cover a 3 star review as I only gained about 3-4db. However Darrell from WackO contacted me and said I must have the cover installed wrong. He was correct as I had put the cover on 180 degrees out of position. I had put the louvers over the filter which was incorrect. Prior to installing the cover I took a reading under the unit appx 2.5 ft away from the cover and my meter varied from 51-52db. After I installed it correctly the meter read 46-47db. This was a 5-6 db gain. He was very responsive to help me correct my mistake.

  22. Robert Mitchell

    We bought the RV A/C Silencer a year ago and have been using our RV full-time ever since installation. What a difference! It is currently in the 90s every day in Texas and the A/C runs almost all day long. With the old cover, it was deafening in the living area of the RV. With the RC A/C Silencer, it is actually livable. Great product. Easy to install. Lives up to its name.

  23. Luke (verified owner)

    Does what it says it will do. Easy to install in a 31-ft Puma. I took before/after readings using the Apple Watch decibel meter. I measured in two places: directly below the unit at 48” from the floor, and at the edge of the dinette table approximately 50” laterally from the unit. Before, with the air dump closed on the stock unit, I measured 65dB under the unit and 58 at the table. After installation, I measured 57dB under the unit and 52 at the table. As others have noted here, 6-8dB is a substantial reduction in noise. Just to be sure the taping of the dump vent was not causing all or most of the sound reduction, I also measured the sound with the vent taped before I installed the cover. Readings were 65dB directly under the unit, and 59 at the table. This silencer works.

  24. Daniel Herod (verified owner)

    A real improvement. When the package arrived, I thought I’d probably wasted my money. I had no way to test it because we don’t have a 30 amp outlet at our house. All I had to go on was reviews from other customers. This weekend we finally went camping and both my wife and I were very pleasantly surprised at how much quieter it makes the A/C. To be sure, the A/C is still loud, but we can actually watch TV now. Before this silencer, we literally could not turn up our TV loud enough to hear it over the A/C. 2018 Keystone Cougar. This product is truly worth the price, at least in our book. The A/C noise went from outrageous to tolerable.

  25. Donald Ryan (verified owner)

    Received my A/C Silencer a couple months ago and finally got it installed today. Easy install, looks good and really cuts down the noise. I was able to hear the stereo without cranking it up to “11”. A vast improvement. Well worth the $ and time.

  26. Rick Martin (verified owner)

    First read about this in Trailer Life months ago. The reviews were mostly positive. Well last weekend we got our Jayco Whitehawk out of winter storage, ordered the silencer and installed this week (easy install ). BIG difference ! And as what other reviewers have stated , you can carry on a normal voice conversation and not have to crank up the TV volume to hear. Money well spent…

  27. Bill Bateman (verified owner)

    We use to have the TV volumn nearly wide open to be able to hear it above the AC. Installed the silencer, turned the AC on, & instatly amazed at how quiet in was. TV is now turned down low. It also seems like the AC puts out better now. It seems cooler throughtout our 5th wheel. We highly recommend it.

  28. Kevin J. Tovornik (verified owner)

    Just installed the silencer and I wish I would have taken sound level readings and air flow measurements.
    This product is absolutely incredible!
    I wouldn’t be surprised if the noise level dropped by 70% or more and air flow increased by a third. It has got to be right up there close to the newest models with the whisper quiet air systems.
    Hell of a product guy’s !!!

  29. Joe Tremain (verified owner)

    Purchased DA 100 units for my 5th wheel and motorhome. Product arrived well packaged and fast. Excellent materials, good directions and all necessary parts provided. Everything fit perfect. I am old, but installed both in 30 minutes. The A/C noise was reduced by about 50%. Will save my marriage ! Should have been original equipment. Thank You WackO.

  30. Joe Tremain (verified owner)

    Purchased Dometic DA100 model for both my 5th wheel and my motorhome. They arrived well packaged and on time ( fast ). The covers are well made of good solid material. Directions were good. All necessary installation items were included. Everything fit perfect. The work is overhead, and I am old, but still installed both units in about 30 minutes. The noise was reduced by about 50%, which will help save my sanity while in the rig , and perhaps save my marriage. The A/C noise was driving us both out of our skull. It’s a damned shame the original A/C units were not so equipped. Thank You WackO.

  31. Carl W. Erickson (verified owner)

    I was skeptical when I seen this product. After reading the reviews on here I purchase 2 of them. Install was super easy less then 10 minutes each. The noise difference is amazing don’t have to turn the TV up when the units are running.Glad I install these. I would recommend these to anyone looking to to reduce the noise level, Thanks again

  32. Lance Hamilton (verified owner)

    I read about this kit in Trailer Life magazine. I have a Carbon toy hauler by Keystone. The 2 A/C vents in the garage barely put out any air. We use the garage as living space once unloaded. This was not comfortable. The unit in the main living area was loud enough that you had to turning up the tv or radio to hear it, then down when the air shut off. I purchased this kit and installed it myself. Very simple install. Easy to follow instructions, and man what a difference! We have A/C in the garage, we can watch tv normally, AND, the vents in the bedroom also have more air, so probably won’t need to run that unit at night. Very happy with my purchase, from order to install. All went well! Thank You!

  33. Kevin Shults (verified owner)

    I read about your product on the Grand Design Owners forum. I must admit that I was skeptical regarding the products ability to reduce our Dometic ACs operational volume.

    I could not be more pleased. Your product has reduced the system’s noise level in half. We no longer need to turn up the TV volume to compensate when the AC comes on.

  34. rick tara (verified owner)

    This did exactly what I wanted it to. I can now hear the tv over the air conditioner. Easy to install as well.

  35. John Stagg (verified owner)

    Big difference in noise reduction. Although it doesn’t completely dampen the noise from the AC, it does dampen enough so you can hear the TV and have a conversation. Very satisfied with the unit. You won’t be disappointed.

  36. Jason S. (verified owner)

    Fantastic and way quieter than I expected! Finally can hear my self think now sitting at the dinning room table. First class American made product that WORKS! Thank you guys.

  37. Ron Holden (verified owner)

    My installation probably took longer than most. I spent time covering every nook and cranny with some HVAC tape I had. The difference in airflow and noise is amazing!

  38. Linda Yackley (verified owner)

    When we first installed the Dometic RV A/C Silencer, we did not notice the difference. Darrell called us and instructed us how it should be installed, we had it wrong! Switched it and OMG ITS QUITE!! GREAT PRODUCT! We will tell all our RV friends! Great Product!

  39. Dan McMillan (verified owner)

    Great product and what a difference. Decibel levels prior to installation were 71db on high fan, 66db on low. After installation high fan dropped to 56db and low to 54db. The compressor was not running. I assume it will be a little louder with the compressor running. I’ll get that when it warms up. This was on a 2020 Cougar with a Dometic unit.

  40. Brenda & Ron Penford

    What a great product. My wife & I were very skeptical about this product but it works and is about 90% quieter. It is also well made . Thanks Ron & Brenda from Ontario Canada. Spending our winters in Florida

  41. Curtis Nice

    I like it and just bought my
    second one.

  42. Andrew Allen (verified owner)

    Very easy to install in my 2010 Concord Class C especially with the how to install video. Prior to installation, my decibel reading was between 70 and 71. After installation my decibel reading was 60 which is the normal reading during conversations. I won’t know about the effectiveness of the cooling aspect until this summer-2020.

  43. Jamie Saunders (verified owner)

    Wow what a difference this makes in the front bedroom of our 5th wheel! I wanted to reduce the noise from this unit, and found this silencer in Trailer Life magazine. I looked at the reviews and a few videos and thought why not give it a try. I could not be more pleased with the operation of this item. It is truly does what it was designed to do – reduce the noise. We can actually lay in bed and listen to the TV while the unit is running now. Thanks for a great product! Do yourself a favor and invest in one of these!

  44. Ronnie Copeland (verified owner)

    We purchased two of them for our 2019 Torque T322 and it is amazing how much quieter the units are now. The supply air flow increase an estimated 10-15%. (I did re-tape the unit openings in the ceiling plenum). My rv buddies will be purchasing them after coming over to check out the difference in noise and air flow. Great product!

  45. Bob Baker (verified owner)

    I’ve now purchased three of these for two different RV. I absolutely love them. It’s hard to believe how much quitter the AC is, at least half if not quieter. You do loose the large air dump but this has not been an issue for us. Also, I made a point of purchasing a roll of Aluminum duct tape and re-taped the inside of our AC ducts especially between the intake and exhaust sides. I also zip tied and managed all the cabling to reduce turbulence. Darrell, the owner is a great guy. I had an issue with my install where I spun one of the cover screws. No questions asked, Darrell replaced the unit.

  46. John Webb (verified owner)

    I saw this product in Trailer Life magazine and immediately ordered a unit for my Domestic A/C. Standing directly under the original dump cover I got a reading of 72db. After installation of the new silencer ( 15 min. job) I got a readout of 63db ! ! That’s nearly half the original noise. Amazing! Quality of the molded plastic components is superb. I highly recommend this product.

  47. roger lees

    very efficient and does what it claims to do. Easy installation as well.

  48. Steve Steinbrecher (verified owner)

    Works just as advertised. Be careful to purchase the correct kit for the correct AC unit. We have a Coleman Trailer WITH a Dometic AC…. Sent the erroneous kit back for a refund. Second was perfect. Installed wigth a power driver in about 15 minutes, with most of the time being used to tape shut the large vent and other smaller openings. all the pieces fit as they were supposed to, and the sound difference is AMAZ
    ING in a 23-foot trailer, to say the least. This will be a HUGE help next summer when we are sleeping on those hot nights!

  49. Scott S. (verified owner)

    I originally installed this product incorrectly. Darrell was very helpful in helping me discover I installed the black cover up side down which caused the screw holes on the white cover housing to not line up. Needless to say it works perfect now and my Dometic 15K BTU AC is much quieter. Highly recommended, great customer support.

  50. Joe Goodman

    Easy to install, works amazing quieting down those obnoxious AC units! Worth every penny!

  51. John Gentzvein

    I purchased two for my Palazzo diesel pusher. The air conditioners were disturbingly noisy. I heard about these silencers from an acquaintance who said they work. The installation was straight forward, fit and finish outstanding. The difference is amazing, a substantial muting of the blowing and drone noice. I’m truly impressed with the perfect fit. I’ll certainly recommend this to all in my circle.

  52. Jim Joling (verified owner)

    Installed my silencer on one of AC units in coach. What a difference. Great product. Will be ordering for the other AC units.
    Thank you for creating this.

  53. Thomas Cannon (verified owner)

    After reading initial reviews I ordered two of these, and they are fantastic. Called the company with a question and the owner answered the phone and we had a great talk about why he created this product and how it works. Since installing them we have traveled across the country from Oregon to Virginia, where today it was 101 and both AC units have been running all day… and we can carry on a normal conversation.

    These are truly one of the best modifications we have made to our RV in five years of full time travel. Don’t hesitate, get one or two now!

  54. Michael Traxler (verified owner)

    Installed as soon as I received it. Easy install. Works like a champ! Tames the A/C noise so good, we no longer have to crank the volume on the TV when it kicks on! Bravo Wacko! Highly recommend this product.

  55. Ken (verified owner)

    Awesome! I do not have a DB meter, but when I installed this silencer on my Dometic unit, it cut the noise level to less than half its previous level. It has more air circulation now also. I had my doubts, $200 for a couple pieces of plastic and some insulation. You will not regret your investment! It does everything they claim, and more.

  56. Gary Way (verified owner)

    Installed this yesterday in my Coach. First off it looks much nicer than the Dometic Dump grill and the filter is amazing! Turned on the A/C and WOW I was amazed at the difference. It is much quieter now. The vents blow like they were supposed to and cold air blows freely. This product is amazing and I would recommend it highly. Thanks Wacko for such a great ideal.

  57. Arnie

    Have had the silencer for about a month now and it does quite the unit. In my opinion, I think we have gotten about a 30% – 40% reduction in noise. At least we can have a conversation or watch TV with the unit running. We have a second a/c unit in the bedroom and have not installed a silencer there as it is a good reminder of how loud the main salon’s unit was. Dometic a/c is the loudest I have ever heard. I think it is well worth the money and easy to install.

  58. Calvin Morse (verified owner)

    I rarely write reviews on products, but this was one of the best purchases I have ever made for my motorhome. My Dometic A/C was so loud I would have to constantly turn the tv up and down. I installed the unit last week before the FMCA rally in Lakeland Florida. I am absolutely amazed at the difference! I can barely hear my A/C running now. For four days I never had to change the volume on my tv. Matter of fact, occasionally I was not sure if the a/c was even running. I’m going to order another for the bedroom. Fantastic product.

  59. Craig Olthoff (verified owner)

    I ordered a unit after reading about it in the FMCA magazine. I put the silencer in the living room area of our RV. I would say the noise lessened by at least half. I have since ordered a unit for the bedroom! Maybe now I will be able to hear the tv! I would definitely recommend the silencer.

  60. David Hoffman

    I bought one of these at the Forest River Owners Group (FROG) Rally last year. I bought the last one after someone had second thoughts. I immediately could hear a significant drop in the noise level after I installed the new cover. By no means do I claim that it makes the AC totally quiet, you can usually hear it when a home AC is running too. However, the noise level is noticeably lower. My motor home AC unit is a heat pump so I have enjoyed the quiet in both summer and winter operations. I personally recommend this product, you won’t regret it.

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