Harmsco 801 0.35 micron HIF Replacement Sediment highly efficient filter cartridges made of pleated Polyester-PlusTM filter media for low pressure drop, high flow capability, increased contaminant removal, long filter runs, reusability and the lowest cost per gallon filtered. • Pleated design with up to 50% more surface area than competitive filters resulting in superior performance & increased contaminant removal • Longer filtration runs for fewer change-outs and less maintenance • Low pressure drop • Thermally bonded for longer usable life • FDA approved materials - NSF 61 certified • Engineered media for superior performance. Learn More

Harmsco HC/90-0.35 0.35 Micron Hurricane 90 Filter Cartridge Learn More

Harmsco HC/90-1 1 Micron Hurricane 90 Filter Cartridge Learn More

Harmsco HC/170-035 .35 Micron Hurricane Filter Cartridge Learn More

Harmsco ® HB-10-1-W 10 Inch Big Blue Water Filter - 9 3/4" Long by 4 1/2" diameter - 1 Micron Big Blue - 8 per case, sold individually. Made with a proprietary blend of Polyester-PlusTM filter media. Cleanable and reusable in most applications, individually shrink wrapped. Flow rates Up to 15 GPM (56 LPM). Order a case and save even more. Learn More

Harmsco ® HB-10-20W Big Blue Water Filter - 9 3/4" Long by 4 1/2" diameter - 20 Micron Big Blue - 8 per case, sold individually. Made with a proprietary blend of Polyester-PlusTM filter media. Cleanable and reusable in most applications; individually Learn More

Harmsco ® HB-20-1-W 20 Inch Big Blue Water Filter - 20" Long by 4 1/2" diameter - 1 Micron Big Blue - 4 per case, sold individually. Made with a proprietary blend of Polyester-PlusTM filter media. Cleanable and reusable in most applications; individually shrink wrapped. Flow rates Up to 130 GPM (113 LPM) Order a case and save even more. Learn More

Harmsco ® HB-20-20-W 20 Inch Big Blue Water Filter - 20" Long by 4 1/2" diameter - 20 Micron Big Blue - 4 per case, sold individually. Made with a proprietary blend of Polyester-PlusTM filter media. Cleanable and reusable in most applications; individually shrink wrapped. Flow rates Up to 130 GPM (113 LPM) Order a case and save even more. Learn More

Harmsco ® WB-1-W WaterBetter Water Filter - Replacement Sediment 1 Micron - 9 3/4" L x 2 3/4" D - Polyester - Pressure drop with Harmsco cartridges is exceptionally low due to our pleated design and increased filter area. 24 per case, sold individually. Order a case and save even more. Learn More

Harmsco ® WB-20-W WaterBetter Water Filter - Replacement Sediment 20 Micron - 9 3/4" L x 2 3/4" D - Polyester - Pressure drop with Harmsco cartridges is exceptionally low due to our pleated design and increased filter area. 24 per case, sold individually. Order a case and save even more. Learn More

Harmsco ® WB-5-W WaterBetter Water Filter - Replacement Sediment 5 Micron - 9 3/4" L x 2 3/4" D - Polyester - Pressure drop with Harmsco cartridges is exceptionally low due to our pleated design and increased filter area. 24 per case, sold individually. Order a case and save even more. Learn More

Harmsco ® H-8600-AM Antimicrobial Replacement Pool Water Filter Cartridge - Step up to Premium Antimicrobial Construction. Cross reference HA8OTC-3, Unicel #C-8600, Pleatco # PA 80 and Filbur # FC 1280. 17 1/2 inches height x 8 1/2 inches diameter. Learn More

Harmsco 921-5 Replacement WaterBetter Sediment 5 Micron 19 1/2 Inch Water Filter. White end caps. Learn More

Harmsco 931-20 WaterBetter Replacement Sediment 20 Micron 29 1/4 Inch Water Filter. Blue end caps. Learn More

Harmsco 931-5 WaterBetter Replacement Sediment 5 Micron 29 1/4 Inch Water Filter. White end caps. Learn More

Harmsco ® H-4326-AM Antimicrobial Replacement Water Filter Cartridge Learn More

Harmsco ® H-4607 Pleated Replacement Water Filter Cartridge - For F120 & DR7. Repalces F120TC / C-4607 / PC7-120 Coleco with core. 5 sq.ft. 7 15/16" length x 4 1/4" diameter. Learn More

Harmsco ® H-4950 Replacement Water Filter Cartridge - Unicel cross reference # C-4950. RA50TC-3 & PRB50-IN. Rainbow 50 sq.ft. 13 3/8 inches height x 4 15/16 inches diameter. Learn More

Harmsco ® H-4950-AM Antimicrobial Replacement Water Filter Cartridge - Step up to Premium Antimicrobial Construction. Unicel cross reference # C-4950. Replaces RA50TC-3, C-4650 & PRB50-IN. Rainbow 50 sq.ft. 13 3/8 inches height x 4 15/16 inches diameter. Fantastic Antimicrobial Spa Filter. Learn More

Harmsco ® H-6430 Replacement Spa Water Filter Cartridge - Replaces WA30TC-3, C-6430 & PWK30. Watkins 30 sq.ft. Fits all models starting from 1991. 10 1/2" height X 6" diameter. Learn More

Harmsco ® H-7447 Replacement Water Filter Cartridge - Replaces CX470-RE, C-7447 & PA50-SV. Hayward 50 sq.ft., Sta-Rite PRC50. Learn More

Harmsco ® H-7477 Replacement Water Filter Cartridge - Hayward 75 sq.ft. Sta-Rite PRC 75 compatible. Replaces CX570-RE / C-7477 / PA75-SV. Learn More

Harmsco ® H-7487 Replacement Water Filter Cartridge - Replaces CX870-RE, C-7487 & PA100-N. Hayward 100 sq.ft.. 25 1/2 height x 6 7/8 diameter. Learn More

Harmsco ® H-7626 Replacement Water Filter Cartridge - Replaces HA25TC-3, C-7626 & PA25. Hayward CX250-RE 25 sq.ft. Learn More

Harmsco ® H-7656 Replacement Water Filter Cartridge - Replaces HA50TC-3, C-7656 & PA50. Hayward CX500-RE, 50 sq.ft. 19 3/4 height X 6 4/8 diameter. Learn More

Harmsco ® H-8409-AM Antimicrobial Replacement Water Filter Cartridge - Step up to Premium Quality Of Antimicrobial Construction. Replaces HA90TC-3, C-8409 & PA90. Hayward CX900 RE. 90 sq.ft. 17 5/16" height X 8 7/8" diameter. Learn More

Harmsco ® H-8412-AM Antimicrobial Replacement Water Filter Cartridge - Replaces HA120TC-3, C-8412 & PA120. Hayward 120 sq.ft. CX1200-RE. #0296 Step up to Premium Antimicrobial Construction. You deserve the best. Learn More

Harmsco ® H-8600 Replacement Water Filter Cartridge - Replaces HA80TC-3, C-8600 & PA80 and Hayward CX800-RE. 75 sq.ft. 17 1/2 height X 8 1/2 diameter. Learn More

Harmsco ® H-9401 Replacement Water Filter Cartridge - Replaces PWW 75 & C-9401. REC Warehouse Waterway 75 sq.ft. 13 1/8 height x 9 7/8 diameter. Learn More

Harmsco ® H-9403-AM Antimicrobial Replacement Water Filter Cartridge - Step up to Premium Quality Antimicrobial Construction. Replaces PWW150 & C-9403. REC Warehouse Waterway 150 sq.ft. 25 height x 10 diameter. Learn More