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    Thumbscrew 1/4 - 20 x 1.75 inch. These are used to secure your corner skirting pieces on your spa in place. This part is the longer of the two thumb-screws available.

    2008 Thumbscrew 1/4 - 20 x 1.75 inch
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    5 inch Directional with O Grey / Black

    5 inch Directional Jet with O Grey / Black for Master Spas
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    SpaBoss Restore quickly and easily cuts through grime to clean and protect your vinyl hot tub cover. Protect your cover from damage caused by UV rays, dirt, and the elements with easy application a few times a year.

    SpaBoss ReStore
    11 reviews
    $17.99
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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.

    94" x 94" Cover for Master Spas
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    *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.

    ---

    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.

    SpaBoss Spa Shock - 7lb.
    17 reviews
    $59.00
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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.

    84" x 84" Square Hot Tub Cover
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    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.

    MP & H2X Trainer Swim Spa Stand Alone Filter
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    The Black Legend Neck Jet Pillow is made to go with the Master Spa Legend Series Hot Tubs (2003 to 2004).

    Black, Legend Neck Jet Pillow
    11 reviews
    $36.36
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    With Scumball, you can remove all those body oils, suntan lotions, and oily scented products that form a scum line on the surface of your pool or spa. These scum-beating balls can absorb up to 40 times their own weight with all those oils and lotions!

    2 - Scumballs
    9 reviews
    $15.00
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    3/4 inch Barb Manifold Plug

    (Waterway SP Manifolds)

    Barb Manifold Plug
    5 reviews
    $2.09
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    Twilight Spas 2 Pump Overlay Set

    TS 2 Pump Overlay
    34 reviews
    $15.18
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    Clamp, Hose 9/16 inch -1 1/16 inch SST

    Clamp Hose 9/16 inch -1 1/16 inch SST
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