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Master Spas - Hot Tub Covers

Owning a properly-sized Master Spa hot tub cover is best way to keep the heat in, the cold out, and your energy bills low! As heat rises from your spa, a well-insulated cover will act as a barrier and prevent the heat from escaping.

Our covers contain a 1.5lb foam density, long steam stopper cushions, six-inch foam insulation, and four inch tapered sides. All of these elements ensure that your hot tub is as energy efficient as can be! Want a completely custom hot tub cover? We can do that too! Additionally, every hot tub cover order placed on MasterSpaParts.com qualifies for Free Shipping!

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    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.

    8' x 8' Cover for  Master Spas (94" x 94")
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    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.

    7' x 7' Hot Tub Cover for Master Spas (84" x 84")
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    Cover Lock and Clip

    Cover Lock and Clip
    $4.75
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    Spa Cover Strap Loick Set

    Spa Cover Strap Lock Set
    $5.25
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    This Master Spa Factory OEM 78” x 78” hot tub cover replacement (SKU: X120240)  is specifically designed to fit your Master Spas® hot tub. This cover is energy efficient 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. It is also made of a high end marine-grade vinyl covering that is mildrew treated, and consists of upgraded rubber grip handles.

    6.5' X 6.5' Master Spas Cut Corner Cover (78" x 78")
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    Cover Lock Body Black

    Lock Body Black
    $3.75
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    The custom factory OEM replacement 120” x 94” Master Spas® swim spa tub cover (SKU: X454108) is specifically designed to fit your Master Spas® hot tub. This swim spa cover has a six-inch thick foam insulation, which tapers down to four inches along the sides. This 24 R-value (the higher the R-value, the better the heat retention) energy-efficient cover comes with a 1.5lb foam density and long stopper steam cushions that help prevent heat loss, and upgraded rubber grip handles.

    Note: This four-segment swim spa cover folds along the longest dimension (the 120" side).

    120" x 94" Hot Tub Cover (Long-edge Fold)
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    Lock Key Blk

    Lock Key Black
    $0.89
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    This is the Lock Clip replacement part for your Master Spas Hot Tub Cover. This replacement piece is made of sturdy plastic and helps to keep your hot tub secure. Furthermore, it aids in preventing wind damage to the cover. This replacement piece has a SKU number of X900103 and is sold through Master Spa Parts.

    Lock Clip Black
    $1.25
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    The Master Spa® Factory OEM 78" x 78" replacement hot tub cover (SKU: X454065) 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 two upgraded black rubber handles.

    6.5' x 6.5' Cover for Master Spas (78" x 78")
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    The Master Spa® Factory OEM 84" x 66" replacement hot tub cover is designed to fit your Master Spas® hot tub. This replacement custom hot tub cover is extremely 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 particular hot tub cover folds along the long edge. Find the corresponding short-edge fold cover here.

    84" x 66" Hot Tub Cover (Long-edge Fold)
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    The Master Spas® hot tub replacement cover 70" x 84" is an exact Master Spa Factory OEM replacement (SKU: X457084). 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 protects against UV rays.

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

    5' 10" x 7' Master Spas Cover (70" x 84")
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