Replacement Hot Tub Cover for the AquaRest Spas AR-500 (Discover 500)
Replacing a waterlogged foam cover on a AquaRest Spas AR-500 (Discover 500)? Here's the exact fit, without measuring twice.
The AquaRest Spas AR-500 (Discover 500) measures 79" x 79" across the top.
It takes the AIRCAP 1™ XX-Small inflatable cover (fits square spas 77–79″).
$1,195 · free US shipping · 3-year manufacturer warranty
Buy the XX-Small for your AR-500 (Discover 500) →Why inflatable instead of foam?
- No foam core — it can never absorb water or grow mold, so it stays 35–40 lb for life
- Welded drop-stitch construction, the same build as inflatable paddleboards
- Insulates with trapped still air that can't lose R-value to moisture
- Includes the pump, three ZipTech™ skirt depths and four keyed locking tie-down straps
Sold by Spa Doctors LLC — a hot tub delivery, relocation and service company. Warranty & store policies.