Save With Quantity Discounts On Replacement Water Filters and Reverse Osmosis Membranes

Harmsco Water Filters

Harmsco Replacement Water Filter Cartridges
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  1. Harmsco 801 HIF 0.35 sub micron Replacement Sediment Filter

    Regular Price: $13.99

    Special Price $8.99

    As low as: $7.69
    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
  2. Harmsco ® H-4607 Replacement Sediment Water Filter Cartridge

    Regular Price: $12.99

    Special Price $7.99

    As low as: $6.29
    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
  3. Harmsco HAC-10-W Activated Carbon Replacement Water Filter

    Regular Price: $18.99

    Special Price $13.99

    As low as: $10.99
    Harmsco’s activated carbon cartridges outperform “canister” and “impregnated” types of cartridges due to their increased carbon content, cellulose-free construction, wet molding process and dual-stage construction. 1.5 GPM max flow rate. 24 per case. HIF 7, HIF 14, HIF 16, HIF 21, HIF 24, Filter Housings, Harmsco Up-Flow High-Capacity Filters HIF 42, HIF 75, HIF 100, HIF 150FL, HIF 200FL, Harmsco Band Clamp Filters BC4-1-T-EP, BC4-2-T-EP, BC4-3-T-EP, BC6-1-T-EP, BC6-2-T-EP, BC6-3-T-EP Priced and sold individually. Order a case and save even more. Learn More
  4. Harm_801-10 (Harmsco 801-10 10 Micron 9.75" Inch HIF Water Filter)
    $7.99
    Harmsco 801-10 10 Micron 9.75" Inch HIF Water Filter Learn More
  5. Harmsco ® HB-20-5-W 20 Inch Big Blue Sediment Water Filter

    Regular Price: $43.99

    Special Price $31.99

    As low as: $28.99
    Harmsco ® HB-20-5-W 20 Inch Big Blue Sedimnet Water Filter - 20" Long by 4 1/2" diameter - 5 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
  6. Harmsco ® H-7626 Replacement Water Filter Cartridge

    Regular Price: $39.99

    Special Price $27.99

    As low as: $24.99
    Harmsco ® H-7626 Replacement Water Filter Cartridge - Replaces HA25TC-3, C-7626 & PA25. Hayward CX250-RE 25 sq.ft. Learn More
  7. Harmsco ® Hurricane HC/90 WaterBetter Pool Water Filter

    Regular Price: $119.99

    Special Price $84.99

    As low as: $79.99
    Harmsco ® HC/90 Pool Water Filter For Hurricane WaterBetter Water Filters - Fits HUR 90 housings, 0315, Tropi-Clean, Supertuf and others. 19 1/2 height x 7 3/4 diameter. Learn More
  8. Harmsco 801-5W 5 Micron 9.75" Inch HIF Replacement Water Filter
    $7.99
    Harmsco 801-5W 5 Micron 9.75" Inch HIF Water Filter Learn More
  9. Harmsco 931-5 WaterBetter Replacement Sediment 5 Micron 29 1/4 Inch Water Filterv

    Regular Price: $38.99

    Special Price $24.99

    As low as: $20.99
    Harmsco 931-5 WaterBetter Replacement Sediment 5 Micron 29 1/4 Inch Water Filter. White end caps. Learn More
  10. Harmsco ® H-9403-AM Antimicrobial Replacement Water Filter Cartridge

    Regular Price: $159.99

    Special Price $119.99

    As low as: $108.75
    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
  11. Harmsco WBAC-10-W Replacement Carbon Water Filter

    Regular Price: $22.99

    Special Price $14.99

    As low as: $12.99
    Harmsco WBAC-10-W Replacement Carbon Water Filter Learn More
  12. Harmsco-HC-90-5 Harmsco HC/90-5 5 Micron Hurricane 90 Filter Cartridge

    Regular Price: $119.99

    Special Price $84.99

    Harmsco HC/90-5 5 Micron Hurricane 90 Filter Cartridge Learn More
  13. Harmsco ® HB-20-1-W 20 Inch Big Blue Sediment Water Filter

    Regular Price: $49.99

    Special Price $34.99

    As low as: $29.99
    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
  14. Harmsco ® H-7477 Replacement Water Filter Cartridge

    Regular Price: $99.99

    Special Price $58.99

    As low as: $54.99
    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
  15. Harmsco ® HB-20-50W-AM Big Blue 20 Inch Antimicrobial Water Filter

    Regular Price: $54.99

    Special Price $39.99

    As low as: $35.99
    Harmsco ® HB-20-50W-AM Big Blue 20 Inch Antimicrobial Water Filter. Antimicrobial Replacement Water Filter Cartridge - Step up to The Premium Quality Of Antimicrobial Construction. Cleanable and reusable in most applications; individually shrink wrapped. Flow rates Up to 130 GPM (56 LPM). Order a case and save even more. Learn More
  16. Harmsco 801-5 5 Micron 9.75" Inch HIF Water Filter Replacement Cartridge
  17. Harmsco 921-5 WaterBetter Replacement Sediment 5 Micron 19 1/2 Inch Water Filter

    Regular Price: $19.99

    Special Price $12.99

    As low as: $11.99
    Harmsco 921-5 Replacement WaterBetter Sediment 5 Micron 19 1/2 Inch Water Filter. White end caps. Learn More
  18. Harmsco ® H-8600 Replacement Water Filter Cartridge

    Regular Price: $99.99

    Special Price $67.99

    As low as: $62.99
    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
  19. Harmsco ® ST-6 Replacement Water Filter

    Regular Price: $8.99

    Special Price $5.99

    As low as: $4.59
    Harmsco ® ST-6 Water Filter - Harmsco Bestfilter cluster water filter cartridges. 9 3/4" height Learn More
  20. Harmsco HB-20-50W 50 Micron 20 Inch Big Blue Water Filter
    $34.99
    Harmsco HB-20-50W 50 Micron 20 Inch Big Blue Water Filter Learn More
  21. Harmsco ® HB-10-20W Big Blue Sediment Water Filter

    Regular Price: $29.99

    Special Price $18.99

    As low as: $16.49
    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
  22. Harmsco ® H-6430 Replacement Water Filter Cartridge

    Regular Price: $36.99

    Special Price $24.99

    As low as: $22.99
    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
  23. Harmsco ® HB-10-50W-AM Big Blue Antimicrobial Water Filter

    Regular Price: $35.99

    Special Price $23.99

    As low as: $21.99
    Harmsco ® HB-10-50W-AM Big Blue Antimicrobial Water Filter. Antimicrobial Replacement Water Filter Cartridge - Step up to The Premium Quality Of Antimicrobial Construction. 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
  24. Harmsco 801-20HT 20 Micron 9.75" Inch HIF High Temp Water Filter
    $9.99
    Harmsco 801-20HT 20 Micron 9.75" Inch HIF High-Temp Water Filter Learn More
  25. Harmsco ® WB-5-W WaterBetter Replacement Sediment 5 Micron Water Filter

    Regular Price: $12.99

    Special Price $7.99

    As low as: $6.29
    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
  26. Harmsco ® H-8412-AM Antimicrobial Replacement Water Filter Cartridge

    Regular Price: $129.99

    Special Price $99.99

    As low as: $93.99
    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
  27. Harmsco ® ST/105 Water Filter

    Regular Price: $139.99

    Special Price $89.99

    As low as: $79.99
    Harmsco ® ST/105 Water Filter - Fits Bestfilter BF-105. Filbur cross reference # FC 6110. 19 1/2" height. Learn More
  28. Harmsco-H-4335 (Harmsco H-4335 Replacement Water Filter Cartridge)
    $26.99
    Harmsco H-4335 Replacement Water Filter Cartridge Learn More
  29. Harmsco ® H-4950 Replacement Water Filter Cartridge

    Regular Price: $38.99

    Special Price $26.99

    As low as: $23.99
    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
  30. Harmsco ® HB-10-20W-AM Big Blue Antimicrobial Water Filter

    Regular Price: $35.99

    Special Price $23.99

    As low as: $21.49
    Harmsco ® HB-10-20W-AM Big Blue Antimicrobial Water Filter. Antimicrobial Replacement Water Filter Cartridge - Step up to The Premium Quality Of Antimicrobial Construction. 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
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