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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).

Replacement mineral cartridge for the Spa FROG Serene Floating System or pre-installed Spa FROG inline system.

The Wrap Around Pillow from Master Spa is a larger pillow that wraps around the corner of your hot tub.

Spa Aqua Comb makes cleaning spa filters a breeze! Designed for shallow pleated cartridge filters, the Spa Aqua Comb is used in most spas and swim spas.

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.