* Unicel ® compatible replacement spa water filters
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Large selection of replacement water filters, reverse osmosis membranes, testing kits and water filtration repair parts.  From one water filter or reverse osmosis membrane to case quantity discounts.
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Unicel ® Compatible Spa Replacement Water Filters
 
Unicel ® C-4326 & C-4625 Compatible Replacement Pool Water Filter Cartridge

* Unicel ® C-4326 & C-4625 Compatible Replacement Pool Water Filter Cartridge


Price Each: $29.99
Sale Price: $23.99
Savings: $6.00

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

Harmsco ® H-4326-AM Antimicrobial Replacement Pool Water Filter Cartridge - Step up to Premium Antimicrobial Construction. Cross reference RA25TC-3, Unicel C-4625 - C-4326, Pleatco PRB 25-IN, Filbur FC 4375 - FC 2375. 13 3/8 inches height x 4 15/16 inches diameter.

Unicel ® C-4335 Compatible Replacement Pool Water Filter Cartridge

* Unicel ® C-4335 Compatible Replacement Pool Water Filter Cartridge


Price Each: $29.99
Sale Price: $23.99
Savings: $6.00

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Harmsco ® H-4335 Replacement Water Filter Cartridge

Harmsco ® H-4335 Replacement Water Filter Cartridge - Rainbow 35 sq.ft. Replaces RA35TC / C-4335 / PRB35-IN. 9 3/16" length X 5" diameter.

Unicel ® Compatible Replacement Pool Water Filter Cartridge


* Unicel ® Compatible Replacement Pool Water Filter Cartridge


Price Each: $9.99
Sale Price: $7.99
Savings: $2.00

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Harmsco ® H-4607 Replacement Water Filter Cartridge

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.

Unicel ® C-4950 Compatible Replacement Pool Water Filter Cartridge


* Unicel ® C-4950 Compatible Replacement Pool Water Filter Cartridge


Price Each: $32.99
Sale Price: $24.99
Savings: $8.00

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Harmsco ® H-4950 Replacement Water Filter Cartridge

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.

Unicel ® C-4950 Compatible Antimicrobial Replacement Pool Water Filter Cartridge


* Unicel ® C-4950 Compatible Antimicrobial Replacement Pool Water Filter Cartridge


Price Each: $36.99
Sale Price: $27.99
Savings: $9.00

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Harmsco ® H-4950-AM Antimicrobial Replacement Water Filter Cartridge

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.

Unicel ® C-6430 Compatible Replacement Pool Water Filter Cartridge


* Unicel ® C-6430 Compatible Replacement Pool Water Filter Cartridge


Price Each: $32.99
Sale Price: $24.99
Savings: $8.00

Quantity:
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Harmsco ® H-6430 Replacement Water Filter Cartridge

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.

Unicel ® C-7626 Compatible Replacement Pool Water Filter Cartridge


* Unicel ® C-7626 Compatible Replacement Pool Water Filter Cartridge


Price Each: $32.99
Sale Price: $27.99
Savings: $5.00

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Harmsco ® H-7626 Replacement Water Filter Cartridge

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

Unicel ® C-7656 Compatible Replacement Pool Water Filter Cartridge


* Unicel ® C-7656 Compatible Replacement Pool Water Filter Cartridge


Price Each: $51.99
Sale Price: $46.99
Savings: $5.00

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Harmsco ® H-7656 Replacement Water Filter Cartridge

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.

Pool and Spa Bacteria Tests
 

Price Each: $14.99

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Pool and Spa Bacteria Tests

2 Pool And Spa Bacteria Tests Per Package. Easy to use. Do it yourself. Results in 20 minutes. Test for harmful bacteria for safety.


Be sure to check our Pure Drinking Water Parts Department for important parts such as TDS Testers For Reverse Osmosis Membranes, Replacement Tanks, O-rings , Filter Housing Wrenches, Faucets, Pumps, Fittings, UV Systems and more parts for your reverse osmosis pure water filtration system.   View maintenance and servicing tips for drinking water systems online at our Installation & Trouble shooting Guide.

* Unicel ® is the registered trademark of Unicel, the manufacturer of Unicel ® brand spa equipment.  The replacement filters and parts listed above are not manufactured or endorsed by Unicel ®.  Rather, these filters and parts are manufactured by other companies.  While these filters and parts are compatible for use in Unicel ® brand spa equipment, we make no representation as to whether using these filters and parts is consistent with the warranty and specifications applicable to Unicel ® equipment.

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