180" x 94" Swim Spa Cover for H2X Trainer 15
The 180" x 94" Master Spas® swim spa cover (OEM SKU: x454158) is designed to fit your H2X Trainer 15 perfectly. It features 6" center insulation tapered to 4", energy-efficient 1.5 lb foam density, and a 24 R-value. Includes a full-length heat seal, upgraded rubber grip handles, and is available in 18 color options.
This 180" x 94" Master Spa Factory OEM swim spa cover is a high-performance replacement designed specifically for the H2X Trainer 15. Featuring 6" thick EPS foam insulation that tapers to 4" along the edges, plus a 1.5 lb foam density, this cover helps lock in heat and reduce energy loss. It’s wrapped in marine-grade vinyl for excellent resistance to mildew, UV rays, and harsh weather conditions.
Key Features of this Swim Spa Cover:
- Tapered EPS Foam Core – With a 6" to 4" taper and 1.5 lb density, the foam core insulates effectively while resisting water absorption.
- Full-Length Heat Seal – Helps minimize heat loss by sealing the center seam, backed by a 12 oz. chemically resistant vinyl scrim.
- Three-Panel Skirt – Adds another layer of protection around the spa’s perimeter, helping retain heat and block debris.
- Upgraded Rubber Grip Handles – Reinforced rubber handles make lifting and maneuvering your cover much easier.
- Secure Locking Hardware – Four locking straps with release buckles help keep the cover firmly in place.
- Galvanized Steel Brackets – Added strength and durability at stress points for a longer-lasting cover.
- Reinforced Bottom Vinyl – The underside of the cover is made with 11 oz. mildew-treated, reinforced vinyl for extra protection.
- Double-Stitched Construction – Reinforced with 27 stitching points to improve structural integrity and extend product life.
- ASTM Certified – Meets ASTM safety standards for spa covers.
- Available in 18 Colors – Choose from a wide range of color options to match your spa or backyard décor.
Free shipping to the lower 48 states!
Be sure to check out our Swim Spa Cover Warranty for full coverage details.

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