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The 70" x 83" Hot Tub Cover (Short-edge Fold) (SKU: 457187) is designed to fit your Master Spas® hot tub. This cover ensures extreme energy efficiency as it is 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 to help prevent heat loss. Additionally, it is made of a high end marine-grade vinyl covering that is mildew treated, and consists of upgraded rubber grip handles.
Note: This particular cover folds along the shortest 70-inch edge. For a hot tub cover folding on the long edge, please see 83" x 70" Hot Tub Cover (Long-edge Fold).
Most likely you're visiting our online store today because your spa's circuit board has failed. And, we'd like to say you've come to the right place! As one of the most trusted online spa parts vendors, Master Spa Parts offers this MS1000 External PCB (V/N 53290) from the original equipment manufacturer at a great value. To make this offer even better, we provide free shipping on this external circuit board replacement for MS1000 to all destinations in the Lower 48.
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.

























