Keep your fifth wheel looking showroom-fresh between trips with ADCO's Designer Series SFS Aquashed Cover. Engineered with 30% more SFS Aquashed material and a triple-layer construction, this cover delivers serious protection against rain, humidity, and UV degradation -- while staying breathable enough to prevent the mold and mildew that trap moisture covers invite. Recommended for moderate climates and short-term to seasonal storage.
At 486 inches long, 108 inches wide, and 126 inches tall, this cover is sized specifically for fifth wheel trailers in the 37'1" to 40' range. The multi-tone gray exterior resists sun fading and looks clean in storage, while the engineered fabric system does the real work underneath.
ADCO's SFS (Super Duty Fabric System) Aquashed technology layers a water-beading top panel over a breathable polypropylene base. The result is a cover that sheds rain on contact but still allows vapor to escape -- critical for preventing condensation buildup on your roof, sidewalls, and slideouts during extended storage.
30% more SFS Aquashed material than previous generations. Beads water on contact and blocks UV rays from degrading your roof and seals.
Durable, breathable side panels resist tearing and allow moisture vapor to escape, reducing mold and mildew risk during storage.
Front and rear buckle cinching removes slack and keeps the cover snug. Bottom-mounted strap and buckle system prevents the cover from lifting in wind.
Zipper entry panels let you access storage bays, compartments, and the hitch area without removing the entire cover. Weighted tie-down assists simplify threading straps under the coach.
The Designer Series uses a three-zone fabric approach. The top panel -- the surface most exposed to direct sun, rain, and debris -- uses three plies of SFS Aquashed material. This proprietary laminate repels water while remaining permeable to air vapor. The side panels use triple-layer polypropylene, which balances durability with breathability on the vertical surfaces less prone to pooling water.
Reinforced front corners resist the snags and abrasion that occur during installation and removal. The multi-tone gray color is not purely cosmetic -- lighter tones reduce heat absorption under the cover compared to darker alternatives, which matters for gel coat and rubber roof longevity.
This cover is designed for fifth wheel trailers measuring 37'1" to 40' in overall length. Measure your trailer from the front of the pin box (or front cap) to the rear bumper at its longest point before ordering. If your trailer falls at the low end of this range, the cover will have extra material managed by the cinching system. If you are at or near 40', confirm your trailer height does not exceed 126 inches (10'6") and width does not exceed 108 inches (9') before purchase.
ADCO recommends this cover for moderate climates and short-term to seasonal storage. It performs well in typical rain, UV exposure, and humidity conditions. It is not rated for heavy snow load or extreme sustained wind without supplemental tie-down. Owners in high-wind regions should use additional aftermarket tie-down kits.