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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).
SpaBoss Spa Shock (2 lb.) is the shock product that you need to keep contaminants from ruining your hot tub water and plumbing. Your chlorine and bromine sanitizers work hard to keep your water disinfected, and shocking the water regular with a non-chlorine shock keeps organic matter and bacteria from building up. Comes in a 2lb. bag.
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).

























