Spa brand
Master Spas filter cartridges
15 rich cartridge records compiled from 1 matching source brand entry.
Model and OEM part cross-reference
Model wording is retained from the source. Match the OEM number where present, then verify cartridge dimensions.
| Model | OEM part | Unicel | Pleatco / Filbur | Verification |
|---|---|---|---|---|
| Master Spas | — | 4CH-20 | PHC25PHC25P4PSG25P4 | cross-checked against 3 sources |
| Clarity Spas 415 | — | 4CH-252 | PMA20-F2M | cross-checked against 2 sources |
| Contractor Series 415 | X268521 | 4CH-252 | PMA20-F2M | cross-checked against 2 sources |
| Master Spas | — | 4CH-252 | PMA20-F2M | cross-checked against 2 sources |
| Master Spas | — | 4CH-935 | PWW35LFC-0170 | cross-checked against 2 sources |
| Master Spas | — | 4CH-949 | PWW50LFC-0172 | cross-checked against 2 sources |
| Master Spas; Freedom Spas | — | 6CH-45 | PTL45W-PPTL45W-P4FC-0330 | cross-checked against 3 sources |
| Master Spas | — | 6CH-45 | PTL45W-PPTL45W-P4FC-0330 | cross-checked against 3 sources |
| Master Spas | PMA-R1 | 6CH-352 | PAS40-F2MFC-0312 | cross-checked against 2 sources |
| Twilight Series | PMA40L-F2M | 6CH-402 | — | single-source |
| Master Spas | thread | 6CH-940 | PWW50PWW50P3FC-0359 | cross-checked against 3 sources |
| Master Spas | — | 7CH-322 | PAS35-2PAS35-2 W/O 2”APAS35-2-M | cross-checked against 3 sources |
| Master Spas,Top Load Cartridge | — | 8CH-66 | PMA60PMA60-F2MFC-0515 | cross-checked against 2 sources |
| Master Spas | — | 8CH-66 | PMA60PMA60-F2MFC-0515 | cross-checked against 2 sources |
| Eco-Pur (inner) | — | C-3310AM | — | single-source |
| Master Spas | — | C-3310AM | — | single-source |
| Futura Spa (Strong Industries) Antigua | — | C-4303 | PSANT20FC-0185 | cross-checked against 2 sources |
| Advanced/LA Spas,Threaded 25 sq.ft. w/handle | — | C-4324 | PGS25PGS25P4FC-0187 | cross-checked against 2 sources |
| Master Spas | — | C-4324 | PGS25PGS25P4FC-0187 | cross-checked against 2 sources |
| Master Spas EP-Cylinder (old style) | — | C-7330 | PMA30-2002-RFC-1003 | cross-checked against 2 sources |
| Micro Filter | — | C-7330 | PMA30-2002-RFC-1003 | cross-checked against 2 sources |
| Master Spas EP (new style) | — | C-8341 | PMA40-2003-RPMA45-2004-RFC-1007 | cross-checked against 3 sources |
| Master Spas Round Outer, Eco-Pur | — | C-8341 | PMA40-2003-RPMA45-2004-RFC-1007 | cross-checked against 3 sources |
| Micro Filter | — | C-8341 | PMA40-2003-RPMA45-2004-RFC-1007 | cross-checked against 3 sources |
Spa model names can span multiple model years. Measure before ordering or use the cartridge lookup.