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Swim Spa Covers

We are proud to be your online retailer of H2X swim spa covers and Michael Phelps swim spas covers. Our swim spa cover selection includes covers from Axis and Master Spa. They come in variety of colors and sizes, all in stock and ready to shipped to your door.

All of the covers in this section can be used for any Master Spas swim spa, which includes the H2X and Michael Phelps swim spa series. All of our Master Spas cover products ship free to the continental United States!

Cover Details

The Axis Cover System by Master Spas makes swim spa covers for both your H2X and Michael Phelps Swim Spa.  Axis covers have a high-tech rolling feature, which makes it easy for anyone and everyone to operate - and is different from your typical folding cover. This new and innovative way to take your swim spa cover on and off makes swim spa sessions easier than ever. It's high-tech rolling feature makes it easy for anyone and everyone to operate. Additionally - they are extremely energy efficient and consist of a high quality thick insulation layer. 

H2X Covers

No matter which H2X swim spa you have, Master Spa Parts has got you covered! H2X covers are 5-inches thick in the middle and taper off to 3 inches on the sides. They have an R-value of 20 and a one-pound foam density—making it ideal for cold-weather climates. 

H2X swim spas have multiple different spas to choose from, therefore allowing for different types of spa covers depending on the model. One of the spas H2X offers is the H2X Therapool Series.This series is ideal for exercise and aquatic fitness- as it helps you get fit and stay active! Therapool has up to three jets that go along with the resistance of the water so you get the best workout possible. Additionally, these swim spas are extremely relaxing and induce hydrotherapy with massaging jets and contour seating.

Many H2X covers can also be used on the Michael Phelps Swim Spa line. Here are a the cover options along with the corresponding Master Spa (please check ‘Additional Information’ under each cover listing for specifics):

132" x 94" Swim Spa Cover: This cover is for the H2X Therapool Spas

144" x 94" Swim Spa Cover: This cover is for the H2X Trainer 12 Spas

174" x 94" Swim Spa Cover: This cover is for the H2X Crosstrainer 14 Spa

180" x 94" Swim Spa Cover: This cover is for the H2X Trainer 15 Spa

215" x 94" Swim Spa Cover: This cover is for the H2X Trainer 18 and Michael Phelps Signature Spa

231" x 94" Swim Spa Cover:This cover is for the H2X Trainer 19 and Michael Phelps (MP) Momentum Spas

Michael Phelps Swim Spas Covers

These covers include five different sizes and 13 unique color options. Our Michael Phelps hot tub covers are designed for energy efficiency, featuring a 5-inch thick design that tapers off to 3 inches. This smart design, combined with an R-value of 20 and a one-pound foam density, makes our Swim Spa Michael Phelps cover a great option for cold-weather climates.

Our assortment of Master Spas covers lock in heat and are long lasting, helping you save money over the life of your spa. Our covers are constructed using high-grade vinyl, UV protection, and tapered foam. They are built to strict ASTM standards for lockable safety covers, offering the highest level of safety in spa covers. MP Swim Spa Covers include:

204" x 94" Axis Cover: This cover is for the Michael Phelps Force Spas

216" x 94" Axis Cover: This cover is for the Michael Phelps Signature Spa and H2X Trainer 18

228" x 94" Axis Cover: This cover is for the MP (Michael Phelps) Momentum and H2X Trainer 19

If you have any questions about which swim spa cover is right for you, call us today at (855) 308-2149. And remember, our covers ship FREE to the continental United States!

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    This 144" x 94" factory OEM replacement cover for the H2X Trainer 12 swim spa features energy-efficient 6" to 4" tapered foam insulation, durable marine-grade vinyl, upgraded rubber grip handles, and lockable safety straps. ASTM-certified for added peace of mind.

    144" x 94" Swim Spa Cover for H2X Trainer 12
  2. picture of tool tip icon

    The 201" x 94" Master Spas® swim spa replacement cover is a Master Spa Factory OEM replacement part. All swim spa covers are made specifically to fit your Master Spas swim spa and come 6" thick in the middle and taper off to 4". This cover includes an energy-efficient 1.5 lb. foam density and a 24 R-value, with a full-length heat seal and upgraded rubber grip handles (included!). They are also available in 18 different colors.

    201" x 94" Swim Spa Cover for MP Force
  3. picture of tool tip icon

     OEM 231" x 94" replacement cover for H2X Trainer 19 and Michael Phelps Momentum swim spas—features tapered foam, marine-grade vinyl, and locking hardware.

    231" x 94" Swim Spa Cover for H2X Trainer 19 and MP Momentum
  4. picture of tool tip icon

    The 174" x 94" Master Spas® swim spa cover (OEM SKU: x454158) is designed for the H2X Crosstrainer 14. It includes 6" center insulation tapered to 4", a 1.5 lb foam density, a 24 R-value, and upgraded grip handles—available in 18 color options.

    174" x 94" Swim Spa Cover for H2X Crosstrainer 14
  5. picture of tool tip icon

    The 132" x 94" Master Spas® swim spa cover is a factory OEM replacement designed for a perfect fit. It features 6" center tapering to 4" edges, a 1.5 lb foam density, and an R-value of 24 for optimal insulation. Includes a full-length heat seal, upgraded rubber grip handles, and is available in 18 color options to match your spa setting.

    132" x 94" Swim Spa Cover for H2X Therapool D & SE
  6. picture of tool tip icon

    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.

    180" x 94" Swim Spa Cover for H2X Trainer 15
  7. picture of tool tip icon

    This 215" x 94" Master Spas OEM replacement cover is built for H2X Trainer 18 and MP Signature swim spas, offering superior insulation and durability.

    215" x 94" Swim Spa Cover for H2X Trainer 18 and MP Signature
  8. picture of tool tip icon

    This 180" x 94" Axis Swim Spa Cover is designed for H2X Trainer 15 swim spas. Its rolling design makes it easy to use, while premium insulation helps retain heat and protect your spa.

    180" x 94" Axis Swim Spa Cover for H2X Trainer 15
    Special Price $3,995.00 Regular Price $4,650.00
  9. picture of tool tip icon

    This 144" x 94" Axis Swim Spa Cover is designed for H2X Trainer 12 models. It rolls on and off with ease and features multi-layer insulation and a steel-reinforced frame.

    144" x 94" Axis Swim Spa Cover for H2X Trainer 12
    Special Price $3,650.00 Regular Price $4,150.00
  10. picture of tool tip icon

    This 228" x 94" Axis Cover fits H2X Trainer 19 and MP Momentum swim spas. Features an easy roll-up design, steel-reinforced frame, and five-layer insulation.

    228" x 94" Axis Swim Spa Cover for H2X Trainer 19 and MP Momentum
    Special Price $4,850.00 Regular Price $4,990.00
  11. picture of tool tip icon

    The 132" x 94" Axis Swim Spa Cover is designed for H2X Therapool spas. It offers simple roll-up access, five-layer insulation, and a sleek, durable build.

    132" x 94" Axis Swim Spa Cover for H2X Therapool
    Special Price $3,495.00 Regular Price $3,950.00
  12. picture of tool tip icon

     This 204" x 94" Axis Cover for Michael Phelps Force swim spas offers easy one-person use, premium insulation, and durable, weather-resistant protection.

    204" x 94" Axis Swim Spa Cover for Michael Phelps Force
    Special Price $4,650.00 Regular Price $4,850.00
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