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The Charcoal Flat Pillow is a well-made pillow that fits securely into many hot tub brands.

The Master Spa® Factory OEM 82" x 60" replacement hot tub cover (SKU: x458260) is specifically designed to fit your Master Spas® hot tub. This replacement custom hot tub cover ensures energy efficiency as it consists of a 1.5lb foam density, 6-inch thick foam insulation that tapers to 4-inch, full-length heat seal cushions that help prevent heat loss, and upgraded black rubber handles.

Note: This hot tub cover (82" x 60") folds along the long edge. 

The Spa Dragon is a patented monitoring system with thermal backup protection that prevents freeze damage caused by equipment failure. Stay worry-free in winter, with real-time alerts and automatic heating activation—no matter where you are.

The Black Flat Pillow from Master Spa will match your original hot tub pillow.

Spa heaters, automated systems, lights, and salt-water chlorinators all depend on a functional circuit board. With Master Spas®' MS50 U PC board, you can bring back the functionality of your spa or hot tub. Get this MS50 PCB fast and free from the Master Spa Parts warehouse when you order from our online store.

Enjoy this comfortable deluxe spa booster seat – with 5-inch thick cushion for maximum comfort and lift while using your hot tub!

Hey, we’ve all been there; you’re enjoying yourself in the hot tub, buy you have to step out for a refreshment or snack. So, you throw on a towel, step out, and the cold hits you. With the SpaCaddy, your beverage, snack, or smartphone is always within reach — without having to leave the comfort of your spa or hot tub!

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).

The 7' x 6.5' (84" x 78") Master Spas® replacement hot tub cover (SKU: X454765) is a 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 and unfazed by UV rays.

Note: This particular hot tub cover folds along the long edge. Find the corresponding short-edge fold cover here.

The 13' x 90" Axis Swim Spa Cover is a simple and hassle free cover for your swim spa! Made with new rolling technology, this energy efficient cover is extremely easy to operate and it makes taking on and off your swim spa cover easier than ever.

The 6.5×7 Master Spas® (78" x 84") hot tub cover replacement (SKU: X454657) is specifically designed to fit your Master Spas® hot tub. This cover ensures energy efficiency as it consists 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 hot tub cover folds along the short edge. Find the corresponding long-edge fold cover here.

Introducing the hassle-free 8' x 14' Axis Swim Spa Cover designed specifically for H2X Crosstrainer 14 Spas. Engineered with rolling technology, this energy-efficient cover offers effortless operation, making it easier than ever to take on and off your swim spa cover. Available in dark gray Midnight.