Replacement Hot Tub Cover for the Sunbelt Hot Tubs SB 821 (Sunwave SW81)
Replacing a waterlogged foam cover on a Sunbelt Hot Tubs SB 821 (Sunwave SW81)? Here's the exact fit, without measuring twice.
The Sunbelt Hot Tubs SB 821 (Sunwave SW81) measures 93" x 93" across the top.
It takes the AIRCAP 1™ X-Large inflatable cover (fits square spas 92–94″).
$1,395 · free US shipping · 3-year manufacturer warranty
Buy the X-Large for your SB 821 (Sunwave SW81) →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.
Other Sunbelt Hot Tubs models: