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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.

The 84" x 94" Hot Tub Cover is a Master Spa Factory OEM replacement (SKU: x458494). 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 and unfazed by UV rays.

Note: This particular hot tub cover folds along its shortest dimension (the 84" side).

The CoverCatch helps keep your spa cover close by and off the ground! It is ideal for smaller sizes spas and covers.

Proline Jet Line Cleaner clears your hot tub jets of all unwanted organics, oils, residue, dirt, minerals and biofilm. It's a great way to keep your hot tub jets clean, clear, and working properly!

Swim Spa Propulsion Overlay 2010

One of the things we love about the Swim Spa Eco Pur Filter is that is can reduce your chemical consumption by up to 75% while cleansing your spa or hot tub of harmful contaminants, bacteria, and microbes. Essentially, this mineral filter for Swim Spas is the filter that pays for itself!

This Eco Pur pure filter works with most Master Spa® H2X & Michael Phelps Swim Spas.

The Black Lounge Pillow fits with many Down East Spas to replace the lounge pillow originally made with the older hot tubs (2003-2009).

The 30 Amp Power Input Fuse by Master Spas is a replacement power fuse made to go in your spa’s PC board. This particular fuse supplies all of the power to your spa’s pumps. Keeping this fuse in tip-top shape is one of the best ways to ensure your spa’s functionality.

*Due to a nationwide shortage of chlorine, prices have increased and supply is very low.*

Spa Ease Oxy Blast can be used as a substitute.

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SpaBoss Spa Shock (7lb.) is a non-chlorine shock, that is the key to keeping your chlorine or bromine sanitizers working like they should. It will help to get rid of the nasty residue from soap, oils, deodorants, and other organic materials that get into hot tubs from regular use. Comes in a 7lb. container.

This heater is a replacement part for the original heater in your Master Spas swim spa and hot tub models. Easily installable so you can get back to enjoying your heated Swim spa and hot tub in no time at all.

This is an original heater assembly made by Balboa Group - leaders in manufacturing spa parts.

Features:

SpaBoss pH Stable is the easiest way to keep your hot tub water balanced and under control. By keeping the pH level stable, you won’t need any many other chemicals in the water. Balanced water chemistry prolongs the life of your hot tub and all the working parts that make it enjoyable.