Original Equipment Master Spas Filter Cartridge. The Swim Spa Outer Filter with Orange Receptacle is used on all H2X Swim Spas and Michael Phelps Signature Swim Spas by Master Spas from 2017 to 2024. This outer filter has an orange Eco Pur Charge receptacle on the top of the filter, and is embossed with "Master Spas PMA-R4 / X268549". It
5.0
2 ratings
5
4
3
2
1
Great product
I like the purchase process. It would help if they would confirm the filters fit in my model and year of swim spa.
J
James · September 14, 2026
Genuine master spa filter!
Great replacement filter at the best price I could find! Will buy again under subscribe and save! Highly recommend! Using in H2X Trainer 15D.