Hot Tub & Spa Filters
Cartridges
Aftermarket cartridges cross-referenced to OEM numbers. Factory direct, MOQ from 50 pcs.
83 parts
Fits Unicel
Hot Tub Filter Cartridge, 34 Sq Ft, 5-3/16 x 11-15/16 In., Replacement for Unicel C-5423, Pleatco PPM35TC, Filbur FC-3623C-5423
20045370-0215FC-3623+1 more
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Fits Unicel
Hot Tub Filter Cartridge, 35 Sq Ft, 4-5/8 x 12-1/2 In., Replacement for Unicel 4CH-9344CH-934
2540-387
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Fits Unicel
Hot Tub Filter Cartridge, 35 Sq Ft, 4-5/8 x 16 In., Replacement for Unicel 4CH-35, Pleatco PTL35P4, Filbur FC-01614CH-35
313826540-486FC-0161+1 more
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Fits Unicel
Hot Tub Filter Cartridge, 35 Sq Ft, 4-15/16 x 9-1/4 In., Replacement for Unicel 4CH-935, Pleatco PWW35L4CH-935
817-4035PWW35LULTRA-S6
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Fits Unicel
Hot Tub Filter Cartridge, 35 Sq Ft, 4-15/16 x 9-1/4 In., Replacement for Unicel C-4335, Pleatco PRB35-IN, Filbur FC-2385C-4335
03FIL130017-248225393+10 more
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Fits Unicel
Hot Tub Filter Cartridge, 35 Sq Ft, 5-3/16 x 12-1/2 In., Replacement for Unicel 5CH-352, Pleatco PPM35SC-F2M, Filbur FC-01965CH-352
2004220092370-0240+6 more
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Fits Unicel
Hot Tub Filter Cartridge, 35 Sq Ft, 5-5/8 x 8 In., Replacement for Unicel 5CH-35, Pleatco PMAX50P4, Filbur FC-03005CH-35
104309FC-0300FC-0300-SC+2 more
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Fits Unicel
Hot Tub Filter Cartridge, 35 Sq Ft, 6 x 8 In., Replacement for Unicel 6CH-352, Pleatco PAS40-F2M, Filbur FC-03126CH-352
06-0014-12FC-0312FC-0318+2 more
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Fits Unicel
Hot Tub Filter Cartridge, 37.5 Sq Ft, 5-5/16 x 9 In., Replacement for Unicel 5CH-37, Pleatco PFF42TC-P45CH-37
303279PFF42TC-P4
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Fits Unicel
Hot Tub Filter Cartridge, 40 Sq Ft, 4-5/8 x 16-3/4 In., Replacement for Unicel C-4440, Pleatco PSD40, Filbur FC-2710C-4440
6540-495FC-2710PSD40
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Fits Unicel
Hot Tub Filter Cartridge, 40 Sq Ft, 5-3/16 x 10-3/4 In., Replacement for Unicel 5CH-402, Pleatco PJW40SC-F2M, Filbur FC-28115CH-402
6540-723FC-2811PJW40SC-F2M
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Fits Unicel
Hot Tub Filter Cartridge, 40 Sq Ft, 6 x 9-1/2 In., Replacement for Unicel 6CH-4026CH-402
PMA40L-F2M
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Fits Unicel
Hot Tub Filter Cartridge, 40 Sq Ft, 8 x 5-3/4 In., Replacement for Unicel 8CH-951, Pleatco PBF368CH-951
10-2870PBF36
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Fits Unicel
Hot Tub Filter Cartridge, 40 Sq Ft, 8 x 6-3/4 In., Replacement for Unicel C-8341, Pleatco PMA45-2004-R, Filbur FC-1007C-8341
FC-1007PMA45-2004-R
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Fits Pleatco
Hot Tub Filter Cartridge, 42 Sq Ft, 5-3/16 x 12-1/2 In., Replacement for Pleatco PCAL42-F2MPCAL42-F2M
M-07-A726LMA-26
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Fits Unicel
Hot Tub Filter Cartridge, 45 Sq Ft, 5-5/16 x 10-1/8 In., Replacement for Unicel C-5345, Pleatco PLBS50C-5345
173584817-0014PLBS50+2 more
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Fits Unicel
Hot Tub Filter Cartridge, 45 Sq Ft, 6 x 8-1/4 In., Replacement for Unicel 6CH-940, Pleatco PWW50P3, Filbur FC-03596CH-940
03FIL140025252378902+5 more
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Fits Unicel
Hot Tub Filter Cartridge, 45 Sq Ft, 6 x 13-1/2 In., Replacement for Unicel 6CH-9456CH-945
6540-498
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Fits Unicel
Hot Tub Filter Cartridge, 45 Sq Ft, 6-3/8 x 11-7/8 In., Replacement for Unicel C-6600, Pleatco PWK40, Filbur FC-3930C-6600
31115FC-3930PWK40
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Fits Pleatco
Hot Tub Filter Cartridge, 45 Sq Ft, 8-1/2 x 10-9/16 In., Replacement for Pleatco PWK45N, Filbur FC-3929PWK45N
31114FC-3929
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Fits Unicel
Hot Tub Filter Cartridge, 47 Sq Ft, 6 x 9-1/8 In., Replacement for Unicel 6CH-47, Pleatco PTL47W-P4, Filbur FC-03156CH-47
373043FC-0315PTL47W-P4
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Fits Unicel
Hot Tub Filter Cartridge, 50 Sq Ft, 4-5/8 x 14-3/4 In., Replacement for Unicel 4CH-50, Pleatco PTL50P4, Filbur FC-01514CH-50
1561-05FC-0151PTL50P4
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Fits Unicel
Hot Tub Filter Cartridge, 50 Sq Ft, 4-15/16 x 13-1/2 In., Replacement for Unicel 4CH-949, Pleatco PWW50L, Filbur FC-01724CH-949
817-4050FC-0172PWW50L
Request quote Factory directWe manufacture ourselves. No trading company in between.
Built to lastEngineering materials matched to OEM specs or better.
Cross-referencedEvery part mapped to the OEM numbers it replaces.
Bulk & container supplyMOQ from 50 pcs. Mixed cartons welcome.
3D fitment modelsVerify threads and ports before you commit.