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Master Spa Swim Spa Filters

Discover our wide range of Master Spa swim spa filters, designed to keep your water sparkling clean and your spa running at peak performance. We offer both genuine OEM replacement filters and high-quality compatible cartridges for the most popular models, including Michael Phelps Signature Swim Spas and H2X Swim Spas. Using the right filter helps protect your pumps, heaters, and plumbing from dirt, oils, and debris while ensuring clear, healthy water for every swim. Browse our full selection to find the exact swim spa filter replacement your model needs, all with fast shipping and expert support.

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FAQ's About Master Spa Swim Spa Filters

Because swim spas circulate more water than hot tubs, their filters typically need replacing every 6–12 months. Heavy use or frequent swimming may shorten that timeframe.

Master Spa makes specific filters for the Michael Phelps and H2X Swim Spas.

  • Use our part finder to find filter sets based on model & year
  • Check your owners manual
  • Use the part number off the top of the filter to search

We only carry genuine Master Spa filters. Aftermarket filters can void warranty, have poor filter performance, and allow bacteria to build up.