Replacement Hot Tub Cover for the Celtic Hot Tubs Mystic 236
Replacing a waterlogged foam cover on a Celtic Hot Tubs Mystic 236? Here's the exact fit, without measuring twice.
The Celtic Hot Tubs Mystic 236 measures 78" x 78" 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 Mystic 236 →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.