The Classic Accessories PolyPRO3 Model 2 cover is purpose-built to protect your travel trailer during seasonal or long-term storage. Triple-layer PolyPRO3 fabric on the roof resists rain, snow, and UV damage, while lighter PolyPRO 1 side panels shed moisture quickly and allow the cover to breathe -- cutting down on the condensation buildup that quietly destroys finishes and seals over a winter.
Storing a trailer without a cover invites UV fade, water intrusion, mildew, bird damage, and dirt accumulation that compounds every season. The PolyPRO3 addresses all of those failure points in a single cover that you can install and remove without a second person -- a real advantage when you are solo at a storage lot or driveway.
Part number 01-0371 (also cataloged as Classic Accessories 73263) fits travel trailers from 20 ft to 22 ft in length with a maximum height of 118 inches. Double-check your trailer's length along the body and its roof height before ordering -- these are the two fitment dimensions that matter most.
PolyPRO3 laminated fabric on the roof resists punctures, UV rays, and standing water better than single-layer covers.
Air vents reduce inside condensation and prevent wind lofting that can stress seams and blow covers off overnight.
Four integrated rope attachment points per side let you cinch the cover down securely, even in windy storage conditions.
The included toss bag lets you thread the rope under the trailer without crawling in the dirt -- a small detail that matters every season.
The PolyPRO3 cover uses a dual-material construction strategy. The roof panel -- the surface that takes the hardest weather abuse -- uses Classic Accessories' three-layer PolyPRO3 laminate, which combines a woven outer face, a barrier middle layer, and a soft inner liner. This panel sheds rain and wet snow while the inner liner guards against scratching painted or gelcoat surfaces.
The side panels use the lighter, single-layer PolyPRO 1 material, which dries faster after rain and provides better airflow to the trailer body. This combination keeps the cover reasonably lightweight for a product in this size class while maintaining meaningful protection on the surfaces most exposed to direct precipitation.
Getting a cover to stay put on a 20-22 ft trailer requires more than elastic corners. Classic Accessories built several complementary fit features into this cover:
The cover stores in its own bag when not in use. Before storing, confirm the cover is fully dry to prevent mildew forming in the folded fabric. A light rinse with a hose and air-dry in shade is sufficient maintenance between seasons.
Classic Accessories backs this cover with a limited 3-year manufacturer warranty against defects in materials and workmanship. Retain your purchase receipt as proof of purchase for any warranty claim.