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The sensor assembly is specifically designed to go with Down East Spas and Legend Series Master Spas (select 1996-1999 models). It is a replacement for Balboa Dual Sensor Assembly with Temperature and Hi-Limit Sensor. Compatible with all Balboa systems that use this type of sensor.

The Charcoal Wrap Around Pillow is designed to be a generic alternative to the brand name pillow that came with one of a few Down East spas from Master Spas.

1 1/2 inch SxSp Gate Valve

SpaBoss Chlor-Aid (2 lb.) is the easy way to disinfect your hot tub water and keep it free from algae and bacteria that can lead to unwanted side effects. This granular chlorine product immediately disinfects water, keeping it clean and clear. Additionally, Chlor-Aid will not disturb the pH or alkalinity balance in your water. 

Michael Phelps Spa End Touch Overlay

Michael Phelps Swim Number Touch Overlay

Given enough time, all hot tub circuit boards will fail. But, that doesn't mean you have to give up on your hot tub altogether. At Master Spa Parts, we're happy to introduce this Contractor Series™ PCB, VS500Z (v/n 55140) at a great value to our website visitors.

Let's make this whole broken-down hot tub a thing of the past by ordering this VS500Z (v/n 55140) Contractor Series™ PCB from the Master Spa Parts online store. Plus, most U.S. destinations qualify for free shipping!

The mineral therapy skin formula by Medicine Springs helps to keep your skin strong, agile, and healthy. Made from geothermal mineral springs around the world – the compounds found in this water will radiate your skin.

One bag treats up to 400 gallons and will last up to 90 days! It has absolutely no impact on your plumbing, filters, or jets. Treat your hot tub the same as you did prior to using this product.

Don't let a failed circuit board shut down the fun and relaxation in your spa or hot tub. Through the Master Spa Parts online store, you’ll discover great savings and high-quality OEM replacement circuit boards, such as this MS1500 PC Board (V/N 54494). Plus, you will get it fast and with free shipping (most U.S. addresses) when you replace your spa’s circuit board (MS1500) through us!

SpaBoss Cal-Rise is the easiest way to increase calcium hardness levels in your hot tub water. Protect your spa or hot tub and the many working parts within the plumbing and heating system by keeping the water chemistry correctly balanced at all times.

Don’t allow a broken pump to spoil your hot tub fun ! The Center Discharge, 120V Aqua-Flo Circ Pump is a replacement OEM pump designed for select Down East Spas and Legend Series Master Spas. Manufactured by world renowned Emerson.

This product replaces x321791 (There may have to be plumbing done or the original pump mounts moved in order to get this pump to replace the x321791).

The combined Bluetooth Stereo & Subwoofer with remote from Aquatic AV brings a fuller and richer sound to your hot tub or swim spa. Upgrade your spa experience with a 288-W amplifier capable of supporting four full-range speakers.