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The 70" x 83" Hot Tub Cover (Short-edge Fold) (SKU: 457187) is designed to fit your Master Spas® hot tub. This cover ensures extreme energy efficiency as it is made of a 1.5-pound foam density, six-inch thick foam insulation (which tapers to 4-inches along the sides), and a full-length heat seal to help prevent heat loss. Additionally, it is made of a high end marine-grade vinyl covering that is mildew treated, and consists of upgraded rubber grip handles.

Note: This particular cover folds along the shortest 70-inch edge. For a hot tub cover folding on the long edge, please see 83" x 70" Hot Tub Cover (Long-edge Fold).

Our Master Spas® 83" x 70" hot tub cover (SKU: 458771) is a factory direct OEM replacement cover specifically designed to fit your Master Spas® hot tub. Consisting of 1.5lb foam density, long steam stopper cushions, six-inch foam insulation, four inch tapered sides, upgraded rubber grip handles and a 24-R value (the greater the R-value, the better the heat storage and heat retention), this cover prevents heat loss and is extremely energy efficient.

Note: This hot tub cover folds along the long edge.

Designed specifically for 2015 Michael Phelps Swim Spas this sensor is a replacement for the sensor in your spa’s heating system allowing you to control the heat of your spa from the external control panel. If you don’t see your model listed, it may still work – so please give our customer service a call!

This is a replacement 8" 304 Stainless Handrail from Master Spas. 

The Charcoal Flat Pillow is a well-made pillow that fits securely into many hot tub brands.

LX 1 amp Circulation Pump

The Pump Pad is your key to a quieter running spa/hot tub. Mount your pump on the pad to prevent transmission of the noise and vibration from the motor in your pump. Works well with pumps on most models.

Your air control helps to regulate the amount of air and water jetted into the tub of your hot tub or spa. A malfunctioning air control valve can drastically reduce the performance and your enjoyment of your spa. Master Spa Parts has the perfect solution.

The DSG LED Lit Air Control 2009 replacement part can help bring back the function of your H2X Swim Spas, Michael Phelps Swim Spas, or Twilight Series of spa or hot tub.

General use 5/16 SS Washer from Master Spa Parts. This unit goes underneath fasteners on your spa/hot tub to keep components of your propulsion system intact.

The 8' x 19' Axis Swim Spa Cover for H2X Trainer 19 + Michael Phelps Momentum Spas is a hassle-free cover for your swim spa! Made with high-tech rolling technology, this energy-efficient cover is effortless to operate, and it makes taking on and off your swim spa cover easier than ever. Available in dark gray Midnight.

The 8' x 18' Axis Swim Spa Cover for H2X Trainer 18 + Michael Phelps Signature Spas is a hassle-free cover for your swim spa! Made with high-tech rolling technology, this energy-efficient cover is straightforward to operate, and makes taking on and off your swim spa cover easier than ever. Available in dark gray Midnight. 

The 8' x 15' Axis Swim Spa Cover for the H2X Trainer 15 Spas is a hassle-free cover for your swim spa! Made with high-tech rolling technology, this energy-efficient cover is effortless to operate, and it makes taking on and off your swim spa cover easier than ever. Available in dark gray Midnight.