Sta-Rite Filter Replacement Cartridges

"Uhd-Sr50 Posi-Flo 50Gpm-Tx Wc108-56S2X 50 Sq. Ft. Posi-Flo 50Tx Posi-Flo 50Txr Posi-Flo T-50Tx Posi-Flo T-50Txr Posi-Flo Ii Ptm50 Cartridge Dimensions: Diameter = 8-11/16In, Height = 13-5/16In W/ Open W/ 12 Concentric Slots" ($57.49) Unicel UHDSR70 Filter Element 70 SQF POSI-FLO ($64.73) Unicel UHDSR100 Filter Element 100SQF POSI-FLO ($84.86) "Uhd-Sr135 Posi-Flo T-135Tx (Ss Tank Only) Wc108-59S2X 135 Sq. Ft. Cartridge Dimensions: Diameter = 8-11/16In, Height = 34-1/2In W/ Open W/ 12 Concentric Slots" ($103.49) "Unicel Uhd-Sr137 Posi-Flo Ii Ptm135 Wc108-70S2X 137 Sq. Ft. Posi-Flo 135Gpm-Tx Posi-Flo 135Tx Posi-Flo 135Txr Cartridge Dimensions: Diameter = 8-11/16In, Height = 31-1/4In W/ Open W/ 12 Concentric Slots" ($105.74) 27002-0030S Pld 50 30 Sq. Ft. Sta-Rite Original Replacement Cartridge ($299.99) Pentair 27002-0100S Cartridge Element 100SQF, Replacement Cartridge for System 2 PLM Series Modular Media Filter ($249.99) 27002-0150S Plm 150 System 2 150 Sq. Ft. Sta-Rite Original Replacement Cartridge ($309.99) Pentair 27002-0200S Plm Cartridge Element, 200SQF, System 2 ($399.99) 25021-0200S System 3 S7M120 Small Sta-Rite Original Replacement Cartridge 100 Sq. Ft. ($201.24) 25022-0201S System 3 S7M120 Large Sta-Rite Original Replacement Cartridge 200 Sq. Ft. ($402.49) 25021-0223S System 3 S7M400 Small Sta-Rite Original Replacement Cartridge 136 Sq. Ft. ($212.44) 25022-0224S System 3 S7M400 Large Sta-Rite Original Replacement Cartridge 264 Sq. Ft. ($509.42) Pentair 25021-0202S System 3 S8M150 Small Sta-Rite Original Replacement Cartridge 191 Sq. Ft. ($308.40) 25022-0203S System 3 S8M150 Large Sta-Rite Original Replacement Cartridge 259 Sq. Ft. ($496.14) Pentair 25021-0224S System 3 S8M500 - Small Sta-Rite Original Replacement Cartridge 209 Sq. Ft. ($378.88) 25022-0225S System 3 S8M500 - Large Sta-Rite Original Replacement Cartridge 291 Sq. Ft. ($515.58)