Master Spa Parts Locator
The 94" x 94" Master Spas® hot tub replacement cover (SKU: X454888) is a genuine OEM product, custom-designed to fit your Master Spas® hot tub perfectly. Built for energy efficiency and durability, it features 1.5 lb. foam density insulation, with a 6-inch center thickness that tapers to 4 inches along the edges. A full-length heat seal helps retain warmth and reduce energy loss. Upgraded with two built-in rubber grip handles for easy lifting, this cover is wrapped in high-quality, mildew-treated, marine-grade vinyl that offers lasting protection against UV exposure.
*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 84" by 84" hot tub cover is a Master Spa Factory OEM replacement (SKU: X454777). Get the right fit without the guesswork.
Please Note: This cover fits other makes of Master Spa, and is the standard at 84" x 84" with a 6" radius.
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.
Get the most out of your H2X® or Michael Phelps Signature Swim Spa by purchasing a high-quality Master Clear Standalone Filter. This filter was used approximately from 2006 up to 2024. All Master Spa Parts orders are shipping out within 48 hours — order your H2X® swim spa filter cartridge replacement today!
⚠️ Do You Have a 2025 Master Spas Hot Tub?
Please note: This filter is not compatible with Master Spas hot tubs manufactured in 2025 or later. Master Spas has recently updated their filter design, and older filters like this one will not fit the new style.
Have a newer hot tub? Explore our full selection of 2025 Master Spas Filters.

























