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Water Filter & Media Replacements

Clean water depends on timely filter changes. Water Filter & Media Replacements product options make it simple to stay on schedule without the stress of manual reordering. Automatic delivery keeps your system performing as designed while helping reduce buildup from sediment, chlorine, and other common contaminants. Every shipment arrives when you need it, so there is no interruption to your water supply. Pure water becomes part of your routine with zero hassle.

About Water Filter & Media Replacement Products

Our collection includes sediment cartridges, carbon block filters, reverse osmosis sets, and specialty media for whole-house and drinking water systems. Popular options fit standard sizes such as 2.5 by 10-inch and 4.5 by 20-inch housings. Replacement sets are available for multi-stage systems, including combinations that target rust, heavy metals, and chemical impurities. Genuine OEM and compatible alternatives allow flexibility without sacrificing performance. Each product listing includes compatibility details to simplify selection.

Subscription management is straightforward and flexible. Customers can adjust delivery frequency, update products, or pause shipments at any time. AutoShip offers savings on every order and an added discount on the first subscription purchase. This approach removes guesswork and supports steady filtration results.

Why Choose iFilters for Replacement Filter Products?

iFilters focuses on broad compatibility, dependable construction, and convenient service. In stock inventory supports fast fulfillment, and many products feature verified customer reviews. Subscription savings reward long-term maintenance habits while helping control costs. Clear product descriptions reduce confusion during ordering. Dedicated support is available to assist with selection questions.

Shop Water Filter & Media Replacement products online today!

Original price $77.35 - Original price $77.35
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Hydro Guard HDG-U300-UF Replacement Filter Set – OEM Replacement for HDG-U3000-UF The Hydro Guard HDG-U300-UF Replacement Filter Set is the OEM rep...

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Original price $77.35 - Original price $77.35
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$77.35
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Original price $139.99 - Original price $139.99
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$139.99
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Current price $139.99

Hydro Guard HDGT-45 Reverse Osmosis 1-Year Filter Replacement Set – 50 GPD The Hydro Guard HDGT-45 Reverse Osmosis 1-Year Filter Replacement Set is...

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Original price $139.99 - Original price $139.99
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$139.99
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Original price $23.99 - Original price $23.99
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Hydro Guard HDGT-CB5 Second Stage Twist-Style Carbon Block Pre-Filter – OEM Replacement Enhance your water quality and filtration efficiency with t...

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Original price $23.99 - Original price $23.99
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Original price $15.99 - Original price $15.99
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Hydro Guard HDGT-SED5 First Stage Twist-Style Sediment Pre-Filter – OEM Replacement Ensure optimal filtration performance with the Hydro Guard HDGT...

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Original price $15.99 - Original price $15.99
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Original price $35.99 - Original price $35.99
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100 Micron Pleated Polyester Filter Cartridge – SPX-45-20100 – 4.5" x 20" – Hydro Scientific SPX Series Product image shown is a representation onl...

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Original price $35.99 - Original price $35.99
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Original price $28.99 - Original price $28.99
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KDF85-10 2.5" x 10" Coconut GAC + KDF85 standard size filter cartridge. For Well Water or City Whole House filtration as well as Commercial use. T...

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Original price $28.99 - Original price $28.99
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Original price $29.00 - Original price $29.00
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The Hydron TW-2012-100 Reverse Osmosis membrane produces 100 gallons per day and is designed for home drinking water, DI systems, office and certai...

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Original price $29.00 - Original price $29.00
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Original price $174.99 - Original price $174.99
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Hydron BW-4040 Reverse Osmosis Membrane – High-Performance Commercial RO, 2400 GPD The Hydron BW-4040 Reverse Osmosis Membrane is a high-efficiency...

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Original price $174.99 - Original price $174.99
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Original price $169.00 - Original price $169.00
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Hydron HLP-4021 – 1000 GPD Light Commercial Reverse Osmosis Membrane High-Performance 4" x 21" RO Membrane for Light Commercial Applications The Hy...

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Original price $169.00 - Original price $169.00
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Original price $70.25 - Original price $70.25
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Upgrade your water purification system with the HYDRON MEMBRANE 300GPD, a high-performance reverse osmosis (RO) membrane designed for efficient fil...

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Original price $70.25 - Original price $70.25
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Original price $24.20 - Original price $24.20
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Hydron TW-1812-100D – 100 GPD Reverse Osmosis (RO) DI Membrane Replacement Filter The Hydron TW-1812-100D is a 100-gallon-per-day (GPD) Reverse Osm...

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Original price $24.20 - Original price $24.20
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Original price $19.43 - Original price $19.43
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The Hydron TW-1812-75 Reverse Osmosis membrane produces 75 gallon per day and is designed for home drinking water, DI systems, office and certain L...

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Original price $19.43 - Original price $19.43
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Original price $341.00 - Original price $341.00
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$341.00
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Current price $341.00

Hydronix UDF-10BP-ALK Alkaline pH Water Filter Cartridge – 4.5" x 10" The Hydronix UDF-10BP-ALK Alkaline pH Water Filter Cartridge is designed to e...

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Original price $341.00 - Original price $341.00
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Original price $23.75 - Original price $23.75
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Reverse Osmosis (RO) Replacement water filters for AC-30 (AC30) and AC-15 (AC15) Reverse Osmosis (RO) Systems. Includes Sediment, Carbon Block and ...

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Original price $23.75 - Original price $23.75
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Original price $19.08 - Original price $19.08
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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
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Original price $40.24 - Original price $40.24
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2 Pack Hydronix CB-45-1005 Coconut Shell Carbon Block water filter cartridge measures 4.5" x 10" standard. This filters offers a 5 micron nominal f...

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Original price $40.24 - Original price $40.24
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Original price $10.52 - Original price $10.52
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Hydronix 2.5 x 10 Inch CIC Plus Carbon Block Water Filter – 5 Micron for Sediment & Chlorine Reduction – CIC-10PLUS Replacement Filter Premium ...

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Original price $10.52 - Original price $10.52
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Original price $49.47 - Original price $49.47
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Replacement filter set for 2 stage 20" filter system. Includes the carbon block filter and sediment filter. Filters need be replaced at least once ...

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Original price $49.47 - Original price $49.47
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Original price $67.95 - Original price $67.95
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4 Pack Hydronix CB-45-1005 Coconut Shell Carbon Block water filter cartridge measures 4.5" x 10" standard. This filters offers a 5 micron nominal f...

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Original price $67.95 - Original price $67.95
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Original price $6.90 - Original price $6.90
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The Hydronix CB-25-0505 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 $6.90 - Original price $6.90
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Original price $10.99 - Original price $10.99
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Hydronix CB-25-1005 Whole House RO Coconut Carbon Block Water Filter – 5 Micron, 2.5" x 10" Premium Carbon Block Filtration for Cleaner, Better-Tas...

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Original price $10.99 - Original price $10.99
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Original price $139.00 - Original price $139.00
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Current price $139.00

8 Pack Hydronix CB-45-1005 Coconut Shell Carbon Block water filter cartridge measures 4.5" x 10" standard. This filters offers a 5 micron nominal f...

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Original price $139.00 - Original price $139.00
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$139.00
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Current price $139.00
Original price $39.50 - Original price $39.50
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Hydronix CB-45-2005 Whole House, Hydroponics, Commercial Carbon Block Water Filter – 4.5" x 20", 5 Micron Superior Water Filtration for Residential...

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Original price $39.50 - Original price $39.50
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Original price $59.95 - Original price $59.95
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Hydronix SMCB-4520 carbon block filters are NSF/ANSI standard 42 certified for Material and structural Safety. SMCB-4520 filters have a particle re...

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Original price $59.95 - Original price $59.95
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Current price $59.95
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