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As the "brain" of your hot tub, the circuit board plays a huge part in controlling water flow, filtration system, high-limit sensor, jets, lights, and blowers. Within our online store, Master Spa Parts offers a bountiful selection of hot tub circuit boards, all competitively priced. This MS81 Spa Pc Board from Master Spas® is especially appealing to those looking to bring their spa or hot tub back to a fully functional state. Our online store carries the Michael Phelps swim spa board PC board, as well as many economically priced replacement parts. Order today and get fast, free shipping from Master Spa Parts!

3/4 x 3/4 inch Barb Coupler

Jet 3 3/8 inch Typhoon Directional SST

Calm your mind and body with the alluring, juicy scent of Pomegranate Spa Crystals. Simply add one scoop to complete your spa experience!

The 8' x 15' (94" x 180") Master Spas® swim spa replacement cover is a Master Spa Factory OEM replacement (SKU: x454158). 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!

The 14.5' x 8' (94" x 174'') 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 swim spa 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 colors to match the aesthetic of your hot tub area!

Master Spa Parts customers love our Eco Pur Filter for Twilight Spas. These are available for a number of models, excluding TS120 and TS240. In a field crowded by inferior mineral filters, the Eco Pur filters by Master Spas truly stand apart from the rest. For those who own a model of Twilight Spas, using a mineral filter can help you cut back on chlorine use while also getting your spa or hot tub sparkling clean.

Spa Marvel Cleanser 8oz

2 inch, 5 Scallop Graphite Diverter Valve

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. 

Introducing the hassle-free 8' x 12' Axis Swim Spa Cover designed specifically for H2X Trainer 12 Spas. Crafted with cutting-edge rolling technology, this energy-efficient cover ensures effortless operation, making it easier than ever to take on and off your swim spa cover. Available in dark gray Midnight. 

The Master Spas® hot tub replacement cover 70" x 84" is an exact Master Spa Factory OEM replacement (SKU: X457084). It is specifically designed to fit your Master Spas® hot tub. This cover is extremely energy efficient, as it's 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. It has been upgraded to include two rubber grip handles and is made of a high quality marine-grade vinyl covering that is mildew treated and protects against UV rays.

Note: This particular hot tub cover folds along the short edge. Find the corresponding long-edge fold cover here.