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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 $81.00 - Original price $81.00
Original price
$81.00
$81.00 - $81.00
Current price $81.00

Hydronix PG40300B – 4" Stainless Steel Water Pressure Gauge (0 - 300 PSI, 1/2" Port) The Hydronix PG40300B is a high-precision, UV-resistant stainl...

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Original price $81.00 - Original price $81.00
Original price
$81.00
$81.00 - $81.00
Current price $81.00
Original price $1.60 - Original price $1.60
Original price
$1.60
$1.60 - $1.60
Current price $1.60

The Hydrofit NSF 1/2" Quick Connect x 3/8" MNPT Male Connector Adapter is NSF approved and are designed for ease of use. Hydrofit Quick Connect Fit...

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Original price $1.60 - Original price $1.60
Original price
$1.60
$1.60 - $1.60
Current price $1.60
Original price $1.80 - Original price $1.80
Original price
$1.80
$1.80 - $1.80
Current price $1.80

The Hydrofit 1/2" Quick Change Tube x 1/2" MNPT Fixed Elbows are designed for ease of use. Hydrofit Quick Connect Fittings are designed to provide ...

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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 $75.95 - Original price $75.95
Original price
$75.95
$75.95 - $75.95
Current price $75.95

Hydronix PFM-535 Panel Mount Flow Meter – 5-35 GPM, 1" MNPT The Hydronix PFM-535 Panel Mount Flow Meter is designed for high-precision water flow m...

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Original price $75.95 - Original price $75.95
Original price
$75.95
$75.95 - $75.95
Current price $75.95
Original price $5.44 - Original price $5.44
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$5.44
$5.44 - $5.44
Current price $5.44

The Hydrofit 3/8" Inline Check Valve is NSF to NSF/ANSI certified Hydrofit Quick Connect Fittings are designed to provide all the typical benefits ...

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Original price $5.44 - Original price $5.44
Original price
$5.44
$5.44 - $5.44
Current price $5.44
Original price $29.50 - Original price $29.50
Original price
$29.50
$29.50 - $29.50
Current price $29.50

Hydronix PFM-011 – Panel Mount Flow Meter, 0.1 - 1 GPM, 1/2" MNPT Ensure precise water flow measurement with the Hydronix PFM-011 Panel Mount Flow ...

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Original price $29.50 - Original price $29.50
Original price
$29.50
$29.50 - $29.50
Current price $29.50
Original price $6.40 - Original price $6.40
Original price
$6.40
$6.40 - $6.40
Current price $6.40

3/8" Drain Saddle for use with Reverse Osmosis systems. Compatible with all standard RO systems using 3/8" tubing including US Water RO Systems, US...

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Original price $6.40 - Original price $6.40
Original price
$6.40
$6.40 - $6.40
Current price $6.40
Original price $144.95 - Original price $144.95
Original price
$144.95
$144.95 - $144.95
Current price $144.95

Hydronix AFM-624 Panel Mount Flow Meter – Adjustable 6 to 24 GPM Special Order Notice: This item has a 30-day lead time. The Hydronix AFM-624 is a ...

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Original price $144.95 - Original price $144.95
Original price
$144.95
$144.95 - $144.95
Current price $144.95
Original price $1.99 - Original price $1.99
Original price
$1.99
$1.99 - $1.99
Current price $1.99

3/8" In/Out Female Quick Connect Elbow. These Quick Connect Fittings are designed to provide all the typical benefits and ease of use of a quick co...

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Original price $1.99 - Original price $1.99
Original price
$1.99
$1.99 - $1.99
Current price $1.99
Original price $593.50 - Original price $593.50
Original price
$593.50
$593.50 - $593.50
Current price $593.50

The Hydronix IFM-60200 Inline Flowmeters have easy-to-read scales silk-screened onto the acrylic bodies that are extremely accurate. Solid One piec...

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Original price $593.50 - Original price $593.50
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$593.50
$593.50 - $593.50
Current price $593.50
Original price $593.50 - Original price $593.50
Original price
$593.50
$593.50 - $593.50
Current price $593.50

The Hydronix IFM-50150 Inline Flowmeters have easy-to-read scales silk-screened onto the acrylic bodies that are extremely accurate. Solid One piec...

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Original price $593.50 - Original price $593.50
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$593.50
$593.50 - $593.50
Current price $593.50
Original price $593.50 - Original price $593.50
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$593.50
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Current price $593.50

The Hydronix IFM-40120 Inline Flowmeters have easy-to-read scales silk-screened onto the acrylic bodies that are extremely accurate. Solid One piec...

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Original price $593.50 - Original price $593.50
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$593.50
$593.50 - $593.50
Current price $593.50
Original price $593.50 - Original price $593.50
Original price
$593.50
$593.50 - $593.50
Current price $593.50

The Hydronix IFM-20100 Inline Flowmeters have easy-to-read scales silk-screened onto the acrylic bodies that are extremely accurate. Solid One piec...

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Original price $593.50 - Original price $593.50
Original price
$593.50
$593.50 - $593.50
Current price $593.50
Original price $6.40 - Original price $6.40
Original price
$6.40
$6.40 - $6.40
Current price $6.40

1/4" Drain Saddle for use with Reverse Osmosis systems. Compatible with all standard RO systems using 1/4" tubing including US Water RO Systems, US...

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Original price $6.40 - Original price $6.40
Original price
$6.40
$6.40 - $6.40
Current price $6.40
Original price $71.00 - Original price $71.00
Original price
$71.00
$71.00 - $71.00
Current price $71.00

This Hydronix Panel Mount Flow Meter has an easy-to-read scales silk-screened onto the acrylic bodies that are extremely accurate. The PMF-424 has ...

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Original price $71.00 - Original price $71.00
Original price
$71.00
$71.00 - $71.00
Current price $71.00
Original price $15.00 - Original price $15.00
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$15.00
$15.00 - $15.00
Current price $15.00

The Hydronix SPV-40CLMPKIT Clamp Set is used with 4 inch Hydronix RO Stainless Steel SPV Membrane Vessels.

Original price $15.00 - Original price $15.00
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$15.00
$15.00 - $15.00
Current price $15.00
Original price $3.24 - Original price $3.24
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$3.24
$3.24 - $3.24
Current price $3.24

The Hydrofit WNV-2 Feed Water Valve Adapter measures 1/2"F x 1/2"M x 1/4"F

Original price $3.24 - Original price $3.24
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$3.24
$3.24 - $3.24
Current price $3.24
Original price $5.75 - Original price $5.75
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$5.75
$5.75 - $5.75
Current price $5.75

The Hydrofit Brass Ball Valve Straight is a 1/4" MPT x 1/4" Feed Water Valve

Original price $5.75 - Original price $5.75
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$5.75
$5.75 - $5.75
Current price $5.75
Original price $19.08 - Original price $19.08
Original price
$19.08
$19.08 - $19.08
Current price $19.08

This 1 Micron 2.5" x 30" Hydronix SBC Series Sediment Bonded Depth Cartridge with Silicone Oring & 222/Fin is a specially designed thermally bo...

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Original price $19.08 - Original price $19.08
Original price
$19.08
$19.08 - $19.08
Current price $19.08
Original price $56.00 - Original price $56.00
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$56.00
$56.00 - $56.00
Current price $56.00

Electrical Transformer for 100 GPD RO Booster pump for Reverse Osmosis systems producing up to 100gpd. Used in residential installations with stand...

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Original price $56.00 - Original price $56.00
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$56.00
$56.00 - $56.00
Current price $56.00
Original price $29.65 - Original price $29.65
Original price
$29.65
$29.65 - $29.65
Current price $29.65

Hydronix SBC Series Sediment Bonded Depth Cartridges are specially designed thermally bonded Polypropylene filters that provide superior filtration...

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Original price $29.65 - Original price $29.65
Original price
$29.65
$29.65 - $29.65
Current price $29.65
Original price $13.71 - Original price $13.71
Original price
$13.71
$13.71 - $13.71
Current price $13.71

Hydronix SBC Series Sediment Bonded Depth Cartridges are specially designed thermally bonded Polypropylene filters that provide superior filtration...

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Original price $13.71 - Original price $13.71
Original price
$13.71
$13.71 - $13.71
Current price $13.71
Original price $13.71 - Original price $13.71
Original price
$13.71
$13.71 - $13.71
Current price $13.71

Hydronix SBC Series Sediment Bonded Depth Cartridges are specially designed thermally bonded Polypropylene filters that provide superior filtration...

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Original price $13.71 - Original price $13.71
Original price
$13.71
$13.71 - $13.71
Current price $13.71
Original price $11.41 - Original price $11.41
Original price
$11.41
$11.41 - $11.41
Current price $11.41

Hydronix SBC Series Sediment Bonded Depth Cartridges are specially designed thermally bonded Polypropylene filters that provide superior filtration...

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Original price $11.41 - Original price $11.41
Original price
$11.41
$11.41 - $11.41
Current price $11.41
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