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- Swim spa cover lifts
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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 78" x 66" Hot Tub Cover (Long-edge Fold) is an exact Master Spa Factory OEM replacement. It is specifically designed to fit your Master Spas® hot tub. This cover is extremely energy efficient, as it's 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. It has been upgraded to include two rubber grip handles and is made of a high quality marine-grade vinyl covering that is mildew treated.
Note: This particular cover folds along the longer 78" edge. If you need a cover with these same dimensions (66" x 78") but that folds along the short edge, try our 66 × 78 Inch Hot Tub Cover (Short-edge fold).
Master Spa Parts brings you our Master Spas® decal for auxiliary pump diverter control. This is the perfect solution to replace select models of Master Spas® auxiliary pump controls — and it’s available to our online customers at an ultra-low price. Pick up the Overlay, MP Aux, Divert product, today!

























