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If you've pinpointed your spa's issue to the circuit board, replacing your board can bring back many essential functions and safety features, such as your lights, heat sensors, high-limit sensors, and jet pumps.

At Master Spa Parts, we're proud to carry a diverse selection of circuit boards, including this Master Spas® circuit board, sold under the product name of "Master Spas® Circuit Board MAS400 PC Board (V/N 52185)" in our online store.

SpaBoss Spa Polish is specially designed to seal the surface of your hot tub or hot tub and keep it sparkling clean and protected.

Bring your spa theater system and music to life ! The TST239 Silver transducer is designed specifically for spa theater systems that are in the H2X Swim Spa line.

1 1/2 inch SxSp Gate Valve

2 foot Master Spas STS Spa Harness Extension. This unit allows customers to create an extension to the wiring harnesses that come with the theater systems on Master Spa series of hot tubs.

The 8' x 11' Axis Swim Spa Cover for your H2X Therapool Spas is a hassle-free cover for your swim spa! Made with great rolling technology, this energy-efficient cover is extremely easy to operate, and it makes taking on and off your swim spa cover easier than ever. Available in dark gray Midnight. 

MP Swim Spa, Spa Side Control Panel MP8

1 inch SxS Ball Valve

1.5 inch SxS Gate Valve

A spa circuit board is the "brains" behind your spa, controlling jet flow, filtration systems, water temperature, as well as the unit's high-limit sensors. Master Spa Parts offers a number of replacement circuit boards.

SpaBoss Ultra Spa is the simple and easy product to keep your hot tub water conditioned and your skin soft and smelling fresh. This product works with all sanitizers and hot tub chemicals and contains borates to clarify your spa water.

Enjoy this comfortable deluxe spa booster seat – with 5-inch thick cushion for maximum comfort and lift while using your hot tub!