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-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
  3. Harmsco 931-20 WaterBetter Replacement Sediment 20 Micron 29 1/4 Inch Water Filter

    Regular Price: $38.99

    Special Price $24.99

    As low as: $20.99
    Harmsco 931-20 WaterBetter Replacement Sediment 20 Micron 29 1/4 Inch Water Filter. Blue end caps. Learn More
  4. 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
  5. 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
  6. Harmsco ® HB-10-5-W Big Blue 5 Micron Water Filter

    Regular Price: $29.99

    Special Price $19.99

    As low as: $16.89
    Harmsco ® HB-10-5-W Big Blue 5 Micron Water Filter - 9 3/4" Long by 4 1/2" diameter - 5 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
  7. Harmsco ® H-7447 Replacement Water Filter Cartridge
    Harmsco ® H-7447 Replacement Water Filter Cartridge - Replaces CX470-RE, C-7447 & PA50-SV. Hayward 50 sq.ft., Sta-Rite PRC50. Learn More
  8. 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
  9. Harmsco 801-5 5 Micron 9.75" Inch HIF Water Filter Replacement Cartridge
  10. 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
  11. Harmsco ® H-8600-AM Antimicrobial Replacement Water Filter Cartridge

    Regular Price: $139.99

    Special Price $79.99

    As low as: $74.99
    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
  12. 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
  13. 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
  14. Harmsco ® HB-10-1-W 10 Inch 1 Micron Big Blue Water Filter

    Regular Price: $29.99

    Special Price $19.99

    As low as: $16.99
    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
  15. Harmsco ® H-4950-AM Antimicrobial Replacement Water Filter Cartridge

    Regular Price: $39.99

    Special Price $28.99

    As low as: $26.99
    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
  16. 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
  17. 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
  18. Harmsco-H-4335 (Harmsco H-4335 Replacement Water Filter Cartridge)
    $26.99
    Harmsco H-4335 Replacement Water Filter Cartridge Learn More
  19. Harmsco ® WB-20-W WaterBetter Replacement Sediment 20 Micron Water Filter

    Regular Price: $12.99

    Special Price $7.99

    As low as: $6.39
    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
  20. Harmsco ® H-8409-AM Antimicrobial Replacement Water Filter Cartridge

    Regular Price: $129.99

    Special Price $84.99

    As low as: $79.99
    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
  21. 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
  22. 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
  23. 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
  24. Harm_801-100 (Harmsco 801-100 100 Micron 9.75" Inch HIF Water Filter)
    $7.99
    Harmsco 801-100 100 Micron 9.75" Inch HIF Water Filter Learn More
  25. Harm_931-5 (Harmsco 931-5 WaterBetter Replacement Sediment 5 Micron 29 1/4 Inch W...

    Regular Price: $38.99

    Special Price $24.99

    Harmsco 931-5 WaterBetter Replacement Sediment 5 Micron 29 1/4 Inch Water Filter. Learn More
  26. 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
  27. 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
  28. Harmsco ® OTC/6-4 Replacement Water Filter

    Regular Price: $8.99

    Special Price $6.99

    As low as: $6.24
    Harmsco ® OTC/6-4 Water Filter - Harmsco Bestfilter Cluster water filter cartridges. Tropi-Clean. 20 microns nominal. 6 sq.ft. nominal 9 3/4 height x 2 3/4 diameter. PT. NO. OTC/6-4 Learn More
  29. Harmsco HC/90-50 50 Micron Hurricane 90 Filter Cartridge
    $84.99
    Harmsco HC/90-50 50 Micron Hurricane 90 Filter Cartridge Learn More
  30. 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
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