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Reverse Osmosis Filter Kits

Browse reverse osmosis replacement filter kits for routine system maintenance. Kits may include sediment prefilters, carbon filters, post-filters, and an RO membrane, depending on the model and stage count. Match the kit to your system brand or cartridge dimensions, membrane capacity, connection type, included stages, certifications, and recommended replacement schedule.

Filters

Original price $12.49 - Original price $12.49
Original price
$12.49
$12.49 - $12.49
Current price $12.49

Shokblok Filter protection valves are designed for high pressure installations to protect reverse Osmosis systems, water filtration systems, ice ma...

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Original price $12.49 - Original price $12.49
Original price
$12.49
$12.49 - $12.49
Current price $12.49
Original price $77.00 - Original price $77.00
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$77.00
$77.00 - $77.00
Current price $77.00

The PT06-WH-0500 White Polyethylene tubing is manufactured from top quality, low density materials. The PT06-WH-0500 is ideal for a variety of uses...

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Original price $77.00 - Original price $77.00
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$77.00
$77.00 - $77.00
Current price $77.00
Original price $0.00 - Original price $0.00
Original price $0.00
$249.99
$249.99 - $249.99
Current price $249.99

Hydro Guard HDGT-45BN RO Filtration System – Reliable, Compact & Hassle-Free Water Purification Experience superior water filtration with the H...

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Original price $0.00 - Original price $0.00
Original price $0.00
$249.99
$249.99 - $249.99
Current price $249.99
Original price $35.94 - Original price $35.94
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$35.94
$35.94 - $35.94
Current price $35.94

Your drinking water deserves precision filtration that you can trust. The Watts Premier Compatible 7-Pack 5-Stage RO Replacement Filter Kit provide...

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Original price $35.94 - Original price $35.94
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$35.94
$35.94 - $35.94
Current price $35.94
Original price $199.99 - Original price $199.99
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$199.99
$199.99 - $199.99
Current price $199.99

The Hydronix SPV-4040-34 4" x 40" Stainless Steel Pressure Vessel is designed for use in commercial reverse osmosis, nanofiltration and ultrafiltra...

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Original price $199.99 - Original price $199.99
Original price
$199.99
$199.99 - $199.99
Current price $199.99
Original price $2,289.92 - Original price $2,289.92
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$2,289.92
$2,289.92 - $2,289.92
Current price $2,289.92

PRO+AQUA BNDL-WEL-RO ELITE – Complete Well Water Filtration, Softener & Reverse Osmosis System Transform your home's water quality with the PRO...

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Original price $2,289.92 - Original price $2,289.92
Original price
$2,289.92
$2,289.92 - $2,289.92
Current price $2,289.92
Original price $1.80 - Original price $1.80
Original price
$1.80
$1.80 - $1.80
Current price $1.80

The Hydrofit 1/4" Tube x 1/8" NPTF Fixed Elbows are designed for ease of use. Hydrofit Quick Connect Fittings are designed to provide all the typic...

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Original price $1.80 - Original price $1.80
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$1.80
$1.80 - $1.80
Current price $1.80
Original price $2.59 - Original price $2.59
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$2.59
$2.59 - $2.59
Current price $2.59

The Hydrofit HDF-UT04 1/4" Union Tee has Quick Connect ports for an easy push-in installation. Hydrofit Quick Connect Fittings are designed to prov...

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Original price $2.59 - Original price $2.59
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$2.59
$2.59 - $2.59
Current price $2.59
Original price $12.99 - Original price $12.99
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$12.99
$12.99 - $12.99
Current price $12.99

The Hydronix MH03-1812WH-QC Quick Connect Membrane Housings are manufactured with high-quality NSF approved material and will accommodate standard ...

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Original price $12.99 - Original price $12.99
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$12.99
$12.99 - $12.99
Current price $12.99
Original price $6.20 - Original price $6.20
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$6.20
$6.20 - $6.20
Current price $6.20

The HDF-BVT0404 HYDROFIT Quick Connect Fittings are designed to provide all the typical benefits and ease of use of a quick connect t fitting while...

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Original price $6.20 - Original price $6.20
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$6.20
$6.20 - $6.20
Current price $6.20
Original price $70.00 - Original price $70.00
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$70.00
$70.00 - $70.00
Current price $70.00

This 20 pack of Hydronix SDC-25-1005 polypropylene sediment filter is a 5 micron rated filter. Its universal standard size fits any standard Revers...

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Original price $70.00 - Original price $70.00
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$70.00
$70.00 - $70.00
Current price $70.00
Original price $12.30 - Original price $12.30
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$12.30
$12.30 - $12.30
Current price $12.30

Shokblok Filter protection valves are designed for high pressure installations to protect reverse Osmosis systems, water filtration systems, ice ma...

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Original price $12.30 - Original price $12.30
Original price
$12.30
$12.30 - $12.30
Current price $12.30
Original price $1.80 - Original price $1.80
Original price
$1.80
$1.80 - $1.80
Current price $1.80

The Hydrofit 1/4" Tube x 3/8" NPTF Fixed Elbows are designed for ease of use. Hydrofit Quick Connect Fittings are designed to provide all the typic...

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Original price $1.80 - Original price $1.80
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$1.80
$1.80 - $1.80
Current price $1.80
Original price $16.00 - Original price $16.00
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$16.00
$16.00 - $16.00
Current price $16.00

1/4 Reverse Osmosis Leak Detector (Shut-Off Valve) The Flowlok leak detector is an innovative device installed right below your water filtration s...

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Original price $16.00 - Original price $16.00
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$16.00
$16.00 - $16.00
Current price $16.00
Original price $29.74 - Original price $29.74
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$29.74
$29.74 - $29.74
Current price $29.74

The Hydronix CB-25-1001 NSF Certified Carbon Block water filter is manufactured with high purity coconut shell carbon and is available in a wide ra...

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Original price $29.74 - Original price $29.74
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$29.74
$29.74 - $29.74
Current price $29.74
Original price $15.50 - Original price $15.50
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$15.50
$15.50 - $15.50
Current price $15.50

Hydronix PMP-LPS14 Low-Pressure Switch for Reverse Osmosis (RO) Booster Pump, 1/4" Quick Connect Port, Cable Included The Hydronix PMP-LPS14 is a l...

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Original price $15.50 - Original price $15.50
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$15.50
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Current price $15.50
Original price $14.25 - Original price $14.25
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$14.25
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Current price $14.25

The PG25160L is UV resistant, high-quality water pressure gauge designed with the OEM in mind. From the special synthetic fluid used to fill the ga...

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Original price $14.25 - Original price $14.25
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$14.25
$14.25 - $14.25
Current price $14.25
Original price $70.50 - Original price $70.50
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$70.50
$70.50 - $70.50
Current price $70.50

The PT08-BK-0250 Black Polyethylene tubing is manufactured from top quality, low density materials. The PT08-BK-0250 is ideal for a variety of uses...

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Original price $70.50 - Original price $70.50
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$70.50
$70.50 - $70.50
Current price $70.50
Original price $55.62 - Original price $55.62
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$55.62
$55.62 - $55.62
Current price $55.62

HYDRONIX AFM SERIES FLOWMETERS are of consistent quality with unparalleled endurance. Hydronix Utilizes their experience in Engineering and Injecti...

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Original price $55.62 - Original price $55.62
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$55.62
$55.62 - $55.62
Current price $55.62
Original price $7.23 - Original price $7.23
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$7.23
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Current price $7.23

Hydronix empty cartridges can be used with carbon, resin, KDF, or any other media. Made from high-impact polystyrene to withstand continuous use an...

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Original price $7.23 - Original price $7.23
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$7.23
$7.23 - $7.23
Current price $7.23
Original price $29.50 - Original price $29.50
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$29.50
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Current price $29.50

Hydronix PFM Series Flowmeters have easy-to-read scales silk-screened onto the acrylic bodies that are extremely accurate. Solid One piece Injectio...

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Original price $29.50 - Original price $29.50
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$29.50
$29.50 - $29.50
Current price $29.50
Original price $29.00 - Original price $29.00
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$29.00
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Current price $29.00

This Hydronix ICF-10Q inline coconut filter has 1/4" quick-connect connections and is suitable for drinking water filtration applications. This NSF...

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Original price $29.00 - Original price $29.00
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$29.00
$29.00 - $29.00
Current price $29.00
Original price $6.38 - Original price $6.38
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$6.38
$6.38 - $6.38
Current price $6.38

The HDF-BVT0604 HYDROFIT™ Quick Connect Fittings are designed to provide all the typical benefits and ease of use of a quick connect t fitting whil...

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Original price $6.38 - Original price $6.38
Original price
$6.38
$6.38 - $6.38
Current price $6.38
Original price $69.95 - Original price $69.95
Original price
$69.95
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Current price $69.95

The Hydronix IFM-220 Inline Flowmeters have easy-to-read scales silk-screened onto the acrylic bodies that are extremely accurate. Solid One piece ...

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Original price $69.95 - Original price $69.95
Original price
$69.95
$69.95 - $69.95
Current price $69.95
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