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When it comes time to replace your circuit board and return function to your spa's lighting, jet pumps, and high-limit sensors, we've got you covered. Master Spa Parts has numerous legacy Whirlpool® replacement circuit boards in stock, including this MAS520 PC Board (V/N 54357).
Are you ready for the good news? This legacy Whirlpool® circuit board replacement for MAS520 ships fast and with free shipping to all addresses in the Continental United States.
Once you have the SmartBar hot tub bar installed it’s impossible to go back to the old ways. Just picture always having your favorite drink, smartphone, or e-reader just a reach away. This spa-side bar installs easily and comes with everything you need to set up your soon-to-be favorite hot tub accessory.
39" L X 14" W
The custom factory OEM replacement 120” x 94” Master Spas® swim spa tub cover (SKU: X454108) is specifically designed to fit your Master Spas® hot tub. This swim spa cover has a six-inch thick foam insulation, which tapers down to four inches along the sides. This 24 R-value (the higher the R-value, the better the heat retention) energy-efficient cover comes with a 1.5lb foam density and long stopper steam cushions that help prevent heat loss, and upgraded rubber grip handles.
Note: This four-segment swim spa cover folds along the longest dimension (the 120" side).

























