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Spa Fitter

Master Spas TS 8.25 Replacement Cover

The Master Spas TS 8.25 takes the AIRCAP 1™ X-Large — a foam-free replacement hot tub cover for square spas 92"–94". The TS 8.25's cabinet measures 94" x 94", inside the X-Large's range. The cover weighs 35–40 lb for life, costs $1,195, is engineered to comply with ASTM F1346-23, and carries a 3-year limited warranty.

Top-down view of the Master Spas TS 8.25 hot tub — 94" x 94" square cabinet
Master Spas TS 8.25, seen from above — a 94" x 94" square cabinet.
Spa cabinet94" x 94"
AIRCAP 1™ sizeX-Large fits 92"–94"
Cover weight35–40 lb — constant for life
Price$1,195, free US shipping
SkirtZiptech™ modular, three lengths included
SafetyEngineered to comply with ASTM F1346-23
Warranty3-year limited warranty

Why the X-Large fits the TS 8.25

The AIRCAP 1™ comes in six sizes covering square spas from 77" to 94". Each size is built to overhang its band slightly — that is how a spa cover is meant to sit — so the X-Large, which fits cabinets 92"–94", covers the TS 8.25's 94" x 94" shell with the right overhang. Instead of a rigid foam core wrapped in vinyl, the AIRCAP 1™ uses welded drop-stitch construction (the material of premium inflatable paddleboards): a sealed air chamber that cannot absorb water, so it never becomes the waterlogged, two-person lift that ends most foam covers.

Cabinet dimensions can change between model years. Before ordering, measure your TS 8.25 side to side across the top of the cabinet in both directions — the SureFit™ guide walks through it in two measurements. If your spa measures between two sizes, round up.

Other Master Spas models we fit

Not a TS 8.25?

The Spa Fitter matches 363 models across 25 brands to the right AIRCAP 1™ — or measure any square spa with SureFit™.