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Durable 2 inch 90 degree VGB-standard suction adapter is designed to work with our standard 2 inch suction covers for Master Spa hot tubs. Perfect for constrained spaces and comes with a vacuum break at the 90-degree angle.

SpaBoss Prevent II is used to get rid of staining and scaling in your hot tub and prevents it from building up in the first place. This liquid is a concentrated and multi-purpose stain and scale treatment that is easy to add to any hot tub.

Pillow Receptacles

5/32 x 3/4 inch SST Dowel Pin Shaft Pin for XP Swim Spa Pro

The Grey Terminal Block for H2X is designed specifically to work with your H2X Swim Spa. Feed through up to 750V through this Terminal Block.

Waterproof Stereo Front Cover keeps your spa stereo equipment nice and dry. You spent some good money on this system. Don’t let it get damaged by the harsh conditions that come with spa use.

Get the sound system in your spa area ready for action with up to four speakers with this wiring harness (SKU# X551417). Get your new wiring harness from the trusted source for Master Spas replacement parts.

Dock your mp3 player or phone and enjoy your music selections from your Master Spa with the Fusion Deluxe Docking Station with Bluetooth. Waterproof top-of-the-line enclosure from Aquatic AV.

Designed specifically for the Legend Series Master Spas and the Michael Phelps Swim Spas starting with the 2014 model, the Temperature Sensor Mount is a replacement part that will fit the temperature sensor (SKU : 801821). If you don’t see your model listed, it may still work – so please give our customer service a call!

When a spa's printed circuit board (PCB) fails it can mean the lights, pumps, safety shut-offs, filtering systems, or all of the above will not function as expected. With products such as the MS1700 Circuit Board V/N: 56157 and others for Michael Phelps swim spas, Master Spa Parts can have your spa up and running in no time.

Customers in the Lower 48 can also take advantage of our quick, complimentary shipping offer on this MS1700 circuit board replacement and others $99 and over.

The 3.6 horsepower, 2 speed Sta-Rite / Pentair Pump is a replacement pump that goes with selected spa models. Don’t let a broken part spoil your fun. Order your replacement pump TODAY.

Raise both the pH and alkalinity in your Master Spa with Spa Ease pH/Alkalinity up.