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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 7x7 Master Spas® hot tub replacement cover (84” x 84”) is a Master Spa Factory OEM replacment (SKU: X454777).

This cover fits other makes of Master Spa, and is the standard at 84" x 84" with a 6" radius.

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 and unfazed by UV rays.

Masterfully cover vents with this unit. Comes in an attractive black color. All of the Master Spas skirting parts we sell are certified OEM replacement parts direct from Master Spa.

PR-Weir Anchor DSG

Built specifically for Master Spas Legend Series models, the MS8000 System Pack (V/N 53231) is the perfect replacement for your spa’s original control pack.  Install this genuine, OEM control pack to keep your spa running smoothly!

Replacement Control Panel for Michael Phelps Swim Spas

MP8 Control Panel

The Left Support Arm for CoverMate III Eco B is one of the parts that makes up this economically efficient choice for a hydraulic cover lifter. The Left Support Arm connects to the support arm and is sold here by Master Spa Parts. Prevent possible damage to the lift by remembering to unlock the shock before pulling the CoverMate Cover down.

*To determine if this is the correct replacement arm you need, look at your cover in the open position. While facing the spa and open cover lifter, the left support arm is on left side.*

Adjust your cover height to your preference, with Ultralift’s Standard Mount hot tub cover. This mount allows you to have the option to increase privacy by having the cover up or store it behind your spa for optimal views.

The 8' x 8' (94" x 94") Master Spas® hot tub replacement cover is a Master Spa Factory OEM replacement (SKU: X454888). It is specifically designed to fit your Master Spas® hot tub. This cover is energy efficient, as it's made of a thick 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 and protects against UV rays.

Swim Spa Combo, MSWIM15 Auxiliary Divert Overlay 2010

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 2 inch Pump O-Ring fits neatly into pump joints/parts that need to create a tight seal. Works with 2 inch nuts.

Get all the parts you need to fully assembly your replacement spa pump.