Cartridge, 4 Pack, 81sqft, 3"ot, 3"ob, 7", 19-5/8"L, 4oz : PA81-PAK4

Cartridge, 4 Pack, 81sqft, 3"ot, 3"ob, 7", 19-5/8"L, 4oz Application: Hayward Bottom Physical Dimension: 3" Bottom Style: Open Diameter: 7" Length: 19-5/8" Media Type: 4oz Model: SwimClear C-3025 (4 Req), SwimClear C-3030 (4 Req)Square Footage: 81 sq ftTop Physical Dimension: 3"Top Style: Open Replaces 18101,18101ECO,303773,4900-468,645544012258,645544064257,AK-60450,C-7483,CX580XRE,CX580XREPAK4,FC-1225,FC-3435,FC-6420,PA75SV,PA81,PA81-4,PC-1225,PC-6425,PLE-051-9127,PLE-051-9309,PLE-051-9310,UNIC7483