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Michael Phelps Swim Spa Hot Tub Filters

We offer a complete line of factory direct OEM replacement Michael Phelps Spa filters. All Master Spas swim spas use two possible replacement filters: the Michael Phelps Spa Filter and the Michael Phelps Eco Pur filter, which should be replaced every 6 months.

With Master Spas' patented Eco Pur filtration system, you can be confident your spa has the highest water quality and exceeds all industry standards. The Phelps Swim Spa filters can be ordered individually or as a filter set for additional savings.

If you are looking for a mineral cartridge replacement, refer to the Master Spas Eco Pur Charge Filter, as that is the filter cartridge you will need to use going forward.

For Michael Phelps swim spa filter questions (because we know this can be confusing), feel free to give us a call at anytime at 855-308-2149 and we will help you find the correct filter! When you call, please have the year, make and type of Master Spa you own to make the process easier.

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    Eco Pur Charge filters by Master Spas can help reduce your chlorine usage by up to 75%, while also extending the lifetime of your spa or hot tub. The new Eco Pur Charge Filter is the replacement for all previous Eco Pur Mineral cartridges for Master Spas hot tubs. Choose the best for your spa and save time and money — order an Eco Pur filter 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.

    Eco Pur Charge Filter PMA-EPR
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    Get the most out of your H2X® or Michael Phelps Signature swim spa by purchasing a high-quality Pleatco® replacement filter PWW50P3 to work alongside your H2X® Eco Filter. 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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    With EcoPur® Charge filters for Michael Phelps Swim Spas ™ and H2X® spas available in a convenient three-piece set, you'll be ready to enjoy your spa. Plus, customers in the continental United States get free shipping when they order MSP's swim spa EcoPur® Charge 3-filter set.

    This filter set replaces 268705.

    ⚠️ Do You Have a 2025 Master Spas Hot Tub?

    Please note: These filters are not compatible with Master Spas hot tubs manufactured in 2025 or later. Master Spas has recently updated their filter design, and older filters like these will not fit the new style.

    Have a newer hot tub? Explore our full selection of 2025 Master Spas Filters.

    Fits Most MP & H2X Trainer Swim Spas Eco Pur Charge Filter Set
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    Did you know that the amount of microbes on filtration surfaces can double every 20 minutes? The warm water and organic materials are the perfect breeding grounds for germs. But, with the Pleatco H2X® Trainer & Michael Phelps filter PMA-R4, germs and microbes don’t even have a chance. Pick up your Swim Spa ECO PUR CHARGE System Filter from the Master Spa Parts online store, 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 Charge Outer Filter
  5. picture of tool tip icon

    H2X® and Master Spas® Legend Series™ filters are expensive, but worth every penny when you consider the investment (and enjoyment) of your swim spa. Master Spa Parts’ Swim Spa ECO PUR CHARGE 7 Filter Set is an economical way to keep your spa clean and ready for use.

    Start saving — order bulk filters for your H2X® & Michael Phelps swim spas from the Master Spa Parts online store. This product qualifies for free shipping to the Continental United States.

    ⚠️ Do You Have a 2025 Master Spas Hot Tub?

    Please note: These filters are not compatible with Master Spas hot tubs manufactured in 2025 or later. Master Spas has recently updated their filter design, and older filters like these will not fit the new style.

    Have a newer hot tub? Explore our full selection of 2025 Master Spas Filters.

    Momentum & Trainer 19 Eco Pur Charge (7 Filter Set)
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    This EcoPur Swim Spa set includes 2 stand alone swim spa filters, 1 outer swim spa filter, and 1 Eco Pur charge. It comes in a convenient four-piece set to provide maximum filtration in your swim spa.

    ⚠️ Do You Have a 2025 Master Spas Hot Tub?

    Please note: These filters are not compatible with Master Spas hot tubs manufactured in 2025 or later. Master Spas has recently updated their filter design, and older filters like these will not fit the new style.

    Have a newer hot tub? Explore our full selection of 2025 Master Spas Filters.

    Swim Spa 4 Filter Set
    $249.00
  7. picture of tool tip icon

    Keep your swim spa water clean and clear with this complete 6-filter set for Master Spas swim spas.

    ⚠️ Do You Have a 2025 Master Spas Hot Tub?

    Please note: These filters are not compatible with Master Spas hot tubs manufactured in 2025 or later. Master Spas has recently updated their filter design, and older filters like these will not fit the new style.

    Have a newer hot tub? Explore our full selection of 2025 Master Spas Filters.

    Swim Spa 6 Filter Set
    $384.68
  8. picture of tool tip icon

    New 2025 outer filter for Master Spas Twilight, Legacy, Legend and Therapool. This Master Clear Master Spas filter is designed for better filtration and flow. 

    New 2025 Twilight, Legacy, Legend an Therapool Filter for Eco Pur Charge
  9. picture of tool tip icon

    New 2025 Twilight, Legacy, Legend and Therapool Stand Alone Filter

    New 2025 Twilight, Legacy, Legend and Therapool Stand Alone Filter
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