Filter Model
Filtration Area
Diameter
Length

Posi-Flo II PTM Replacement Cartridges

Generic 50 Sq. Ft. Replacement Cartridge Compatible with Sta-Rite® TX-50 (psr50-4) - NFC2530

Part # WC108-56S2X
$73.73  IN STOCK
Filter Model Posi-Flo® TX/TXR/PTM 50 Filtration Area 50 sq. ft. Diameter 8-11/16 in. Length 13-5/16 in.
Filter Model Posi-Flo® TX/TXR/PTM 50 Filtration Area 50 sq. ft. Diameter 8-11/16 in. Length 13-5/16 in.

Generic 70 Sq. Ft. Replacement Cartridge Compatible with Sta-Rite® TX-70 Pool Filter - NFC2540

Part # WC108-57S2X
$98.33  IN STOCK
Filter Model Posi-Flo® TX/TXR/PTM 70 Filtration Area 70 sq. ft. Diameter 8-11/16 in. Length 18-3/16 in.
Filter Model Posi-Flo® TX/TXR/PTM 70 Filtration Area 70 sq. ft. Diameter 8-11/16 in. Length 18-3/16 in.

Generic 100 Sq. Ft. Replacement Cartridge Compatible with Sta-Rite® 100 Sq. Ft. Pool Filter (UHD-SR100) - NFC2550

Part # WC108-58S2X
$128.02  IN STOCK
Filter Model Posi-Flo® TX/TXR/PTM 100 Filtration Area 100 sq. ft. Diameter 8-11/16 in. Length 25-11/16 in.
Filter Model Posi-Flo® TX/TXR/PTM 100 Filtration Area 100 sq. ft. Diameter 8-11/16 in. Length 25-11/16 in.

Generic 135 Sq. Ft. Replacement Cartridge Compatible with Sta-Rite® PTM 135 Pool Filter - NFC2570

Part # WC108-70S2X
$123.17  IN STOCK
Filter Model Posi-Flo® II PTM-135 Filtration Area 137 sq. ft. Diameter 8-11/16 in. Length 31-1/4 in.
Filter Model Posi-Flo® II PTM-135 Filtration Area 137 sq. ft. Diameter 8-11/16 in. Length 31-1/4 in.