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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).

Designed for outdoor projects that involve a wood-to-wood connection. Keep the parts of your spa well-fastened and ensure safe use.

This is the Extended Pivot Arm for CoverMate III and it is a replacement part for your CoverMate III Cover Lift. There is a reliability, ease of operation and ultimate beauty to the hydraulic cover lift that can only be found in the CoverMate III Cover Lift. This part is 43 inches long and is sold here at Master Spa Parts.

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.

Spa Aqua Comb makes cleaning spa filters a breeze! Designed for shallow pleated cartridge filters, the Spa Aqua Comb is used in most spas and swim spas.

The Blue Water metal remover spa pre-filter is designed with a proprietary filtration medium that includes food-grade carbon. This spa pre-filter works to remove up to 98% of heavy metals, as well as VOCs, TOCs, and other contaminants, allowing you to fill your spa from a variety of sources, such as city water, well water, hard or soft water.

Save money on your spa start-up and get clear water ever fill-up — order the Pure Fill Spa Pre-Filter from Master Spa Parts, today!

The 4.0kW Heater (V/N 50143) is a replacement part for selected models of the Down East Spas and Legend Series Master Spas

Easily installable so you can get back to enjoying your heated Swim spa and hot tub in no time at all.

A spa circuit board is the "brains" behind your spa, controlling jet flow, filtration systems, water temperature, as well as the unit's high-limit sensors. Master Spa Parts offers a number of replacement circuit boards.

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. 

The heater gasket o-ring is a replacement part for the o-rings that come with your spa and support the heater gasket so that there is a tight fit. If you don’t see your model listed, it may still work – so please give our customer service a call!

The 108" x 94" Master Spas® replacement hot tub cover (SKU: X454994) is designed to fit your Master Spas® hot tub. This OEM factory hot tub cover comes with a 1. lb foam density, upgraded rubber grip handles and long steam stopper cushions to help prevent heat loss and make it extremely energy efficient!

Note: This cover folds along its longest dimension.