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Spa control packs, such as this MSWIM 15 Pack, are often-times known as the “brain” of the home spa. This replacement pack has a SKU number of X300794 and is manufactured and engineered by Balboa Water Group. The spa control pack controls a variety of functions in the spa such as lights, blowers, circulating pumps and more.

Measure the chemical balance of your hot tub water with AquaChek Silver 7-Way Test Strips in just 15 seconds.

• Count: 100 test strips
• Tests for: Total Hardness, Total Chlorine, Total Bromine, Free Chlorine, pH, Total Alkalinity, Stabilizer (Cyanuric Acid).

Quickly and easily clean away dirt and debris from your pool and spa performance filters with the Power Pic Reach! The 100% aluminum nozzle with last you season to season and will save you money by preserving the life of your expensive filters!

The 8' x 15' (94" x 180") Master Spas® swim spa replacement cover is a Master Spa Factory OEM replacement (SKU: x454158). All swim spa covers are made specifically to fit your Master Spas swim spa and come 6" thick in the middle and taper off to 4".  This cover includes an energy efficient 1.5 lb foam density and a 24 R-value, with a full length heat seal and upgraded rubber grip handles (included!). They are also available in 18 different colors!

ST Mini Watch Control Panel w/ 15' Cord

As an all-in-one spa and hot tub treatment kit, the SpaBoss Hot Tub Chemical Starter Kit has everything you need to get your spa or hot tub up and running — and ensure it is always safe and ready to use. As a six-piece hot tub treatment kit, it’s quite an economical option, too!

The Hot Tub Chemical Starter Kit (SKU: X777700) includes:

• Granular pH Plus (1.5 lbs)
• Granular pH Minus (2 lbs)
• Granular Non-Chlorine Shock (2 lbs)
• Granular Chlor-Aid (2 lbs)
• Liquid Prevent II (16 oz)
• AquaChek Test Strips (50 Strips)

Keep your water from becoming rusty, brown or clouded with the use of Spa Ease Stain and Scale.

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!

At Master Spa Parts, we carry the Master Spas® Legend® Series Topside Controller Decal to replace controller overlays from the late 1990s and early 2000s. This Standard Series Overlay features beautiful graphics and will stand up to years of constant heat and humidity.

LSI / LSX 557 Pillow Filter Lid

Filter Cover Black

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