For your 81-1/2 inch measurement you can replace the support arms on your Dometic spring-loaded manual awning with the Solera Classic Universal Awning Support Arms for RVs - 81" to 96" Arms # LC434720 (White) or # LC434719 (Black). view full answer...
The Lippert # LC279687 Equa-Flex Cushioned Equalizers are compatible with 3000 to 6000 lb axles, so capacity-wise they'll work great for your 3.5K axles. If the center hole to center hole length of your current equalizers is approximately 5-1/2 inches and the height is around 2-1/2 inches as shown in the provided photo, the Lippert # LC279687 Equa-Flex Cushioned Equalizers would work very well for you.
If you click the provided link, you can see an install video that you might find helpful. view full answer...
To add a cover to your 2014 Coachman Catalina 273BH travel trailer, I recommend the Adco Olefin HD RV Cover for Travel Trailers item # AD27ZR. This cover is designed to work in all climates.
The Adco item # AD27ZR is the best cover that we carry. Not only does it protect against snow, sun, and rainfall but it offers breathable protection and multiple zippers. This means you can access various parts of your trailer without completely removing the cover while it is in storage.
I have linked... view full answer...
Thank you for providing the weight specs for your 2011 Coachmen Catalina 21BH tandem-axle travel trailer.
The trailer's empty/dry hitch weight of 563-lbs suggests that when you have it loaded for a trip, with water and propane tanks filled and all your supplies and gear loaded, the actual loaded tongue weight (TW) will be more like 800 to 900-lbs. This loaded TW is what you want to use to select a weight distribution system. The linked article may be useful to you.
The easiest way to... view full answer...
The Camco UltraGuard # CAM45746 that you referenced weighs 41 lbs and is vented which prevents mildew from developing and wind lofting. view full answer...
The Jensen Stereo # JWM60A measures 9 inches wide, 5-1/2 inches deep, and 6 inches tall. The unit weighs 6 lbs. I've attached a photo to assist.
I've also attached a review video of this stereo to show the functions. Please let me know if you have further questions. view full answer...