PC-3965 Replacement Pool Filter Cartridge - 100 Sq Ft

PC-3965 Replacement Pool Filter Cartridge - 100 Sq Ft

Marsoni

M251S

$63.90

Get it in 3 business days with 1 day shipping. Friday, May 29

PC-3965 Replacement Pool Filter Cartridge - 100 Sq FtReplacement swimming pool filter cartridge element. Specifications Type Filter Cartridge Filtration Area 100 sq ft Top Type Handle Top Outside Bottom (OB) 3 1 2" Diameter 8" Length 16 1 2" MPN PC 3965 Cross References 1039607, 4900 420, 645544039651, 73722, AK 70032, C 8399, FC 3965, PC 3965, PCD100W, PLE 051 9370, SC775, UNI 051 8399

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Id give it a 4.5 star only because the holes weren't well rounded on the interior were they punch through the mold to make the holes. Other than that I tested if it holds full of water and all seals work. The fix: grab a knife scrap the inside ring and it will fall off. If you want a more perfect feel (not rough) heat up a flat head or screwdriver that has a round stem and use that after heating to lightly melt the plastic to smoothen it out. I didnt do 2nd part dont care. Great size, will fit under motorcycles easily like my 04 zx10r.

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Reviewed in the United States on May 16, 2026