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Stainless steel 3/8" Hex Nut is designed to be used on the fastening components of your spa propulsion system. Stay safe and keep your spa components from coming apart.

Measure the chemical balance of bromine based water with AquaChek Red 4-in-1 Bromine Test Strips in 15 seconds.

• Count: 50 test strips
• Tests for: Total Bromine, pH, Total Alkalinity and Total Hardness

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.

Wave Zone UV Ozone

Measure the chemical balance of your hot tub water with AquaChek Spa 6-in-1 Test Strips in 15 seconds.

• Count: 50 test strips
• Tests for: Total Chlorine, Total Bromine, Free Chlorine, Total Alkalinity, pH and Total Hardness.

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.

Keep your spa's sound system playing with this 2-speaker wiring harness, designed for easy installation and seamless connection. Trust Master Spa Parts for dependable, high-quality components to keep your audio setup running smoothly.

3/8" x 1.5" Fender Washer used on the propulsion system in the swim spas. The 3/8" x 1.5" Fender Washer from Master Spa Parts has a thinner body compared to the flat washer and provides an even wider surface area of support for fasteners.

Connect your audio system to the controller of your Master Spa hot tub using this stereo adapter. Order the stereo adapter you need for your Master Spa controller today. 

SpaBoss Filter-Free takes the guess work and headache out of keeping your hot tub filter clean and effective. With easy-to-read colors that indicate whether there is enough product or not, you’ll be able to tell instantly if your hot tub is clean.

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.

The Master Spa’s Grey Pop-up Speaker is a replacement for the speakers on your Master Spa series. Enjoy masterful sound as if you the band was playing right near your tub.