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Inline Filters
Fresh-tasting water starts with the right finishing step, and the inline filters make that upgrade simple for many point-of-use setups. These compact cartridges install directly on a water line, so they fit neatly behind appliances or under a sink. Homeowners often use them after a reverse osmosis unit, on RV lines, or to improve refrigerator ice and drinking water. Sizing stays simple on standard lines. Quick replacement helps keep flavor consistent and supports steady performance between service calls.
About Inline Filter Replacement Products
Inline filter replacement products are built to match common drinking water and RO connections, including popular quick-connect and threaded port styles. Media choices vary to match your goal, such as coconut shell GAC for taste and odor control, KDF blends for added reduction support, and alkaline or remineralization options for a smoother finish. Compact sediment stages are also available for protecting downstream components in tight spaces. Many cartridges are designed as post-polishing filters, which help refine water right before the faucet, dispenser, or ice maker.
Why Choose iFilters for Inline Filter Products?
iFilters makes it easy to find the correct cartridge by offering a broad selection of inline sizes, flow ratings, and connection types in one place. Product pages highlight key details like compatible systems, media type, and expected service life, which helps you shop with confidence. Auto Ship is available on many inline replacements, so filter changes stay on schedule without extra reminders. Fast fulfillment and dependable stock levels help reduce downtime for everyday drinking water, RO systems, RV setups, refrigerators, and other compact filtration needs. Support team resources can help confirm fittings and replacement timing, especially when your system uses mixed tubing sizes or older housings.
Shop inline filter products online today!
Sale
$47.99
$43.20
iFilters Smart Pack RO-100KIT – 5-Stage Reverse Osmosis Replacement Filter Set (100 GPD Membrane) High-Performance 5-Stage RO Filtration for Superi...
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$47.99
$43.20
Sale
$37.00
$33.30
4 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 50 GPD Membrane. For most standard 4 Stage RO system. Sediment, CTO Carbon Block, ...
View full detailsSale
$37.00
$33.30
Sale
$41.15
$37.04
5 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 75 GPD Membrane. For any standard RO system. Sediment, UDF, CTO, Membrane and GAC ...
View full detailsSale
$41.15
$37.04
Sale
$40.42
$36.38
Increase the pH of your filtered water and add healthy minerals back into your body. Remineralize your water by installing this easy-to-install Inl...
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$40.42
$36.38
Sale
$39.95
$35.96
5 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 75 GPD Membrane. For any standard RO system. Sediment, GAC, CTO, Membrane & GA...
View full detailsSale
$39.95
$35.96
Sale
$11.00
$9.90
Hydronix ICF-10 inline coconut shell carbon filters have 1/4" npt connections and are suitable for drinking water filtration applications. The coco...
View full detailsSale
$11.00
$9.90
Sale
$38.00
$34.20
5 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 50 GPD Membrane. For any standard 5 Stage RO system. Sediment, GAC, CTO Carbon Blo...
View full detailsSale
$38.00
$34.20
Sale
$11.00
$9.90
This Hydronix ICF-10Q inline coconut filter has 1/4" quick-connect connections and is suitable for drinking water filtration applications. This NSF...
View full detailsSale
$11.00
$9.90
Sale
$39.00
$35.10
5 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 50 GPD Membrane. For any standard 5 Stage RO system. Sediment, GAC, CTO Carbon Blo...
View full detailsSale
$39.00
$35.10
Sale
$49.99
$45.00
5 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 100 GPD Membrane. For any standard RO system. Sediment, UDF, CTO, Membrane & G...
View full detailsSale
$49.99
$45.00
Sale
$11.00
$9.90
Hydronix ICF-10Q38 inline coconut shell carbon filters have 3/8" quick-connect connections, and are suitable for drinking water filtration applicat...
View full detailsSale
$11.00
$9.90
Sale
$23.75
$21.38
4 pcs RO Reverse Osmosis pre filters. All filters are Premium NSF Certified. This set is used as a mid year replacement set (depending on water usa...
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$23.75
$21.38
Sale
$19.95
$17.96
Hydronix ICF-CAL10Q Inline pH Balancing & Acid Neutralization Filter – 1/4" QC Ports The Hydronix ICF-CAL10Q is a high-performance inline filte...
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$19.95
$17.96
Sale
$19.00
$17.10
Hydronix ICF-10 inline coconut shell carbon filters have 1/4" npt connections and are suitable for drinking water filtration applications. The coco...
View full detailsSale
$19.00
$17.10
Sale
$43.99
$39.60
4 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 75 GPD Membrane. For any standard 4 Stage RO system. Sediment, CTO Carbon Block, M...
View full detailsSale
$43.99
$39.60
Sale
$37.16
$33.45
4 Stage NSF Reverse Osmosis RO Replacement Water Filter Set with 75 GPD Membrane. For any standard 4 Stage RO system. Sediment, CTO Carbon Block, M...
View full detailsSale
$37.16
$33.45
Sale
$11.81
$10.63
Hydronix ICF-2512Q Inline Filters with Quick Connect utilize NSF-listed coconut shell GAC and are designed to remove unpleasant taste and odor and ...
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$11.81
$10.63
Sale
$10.81
$9.73
This 3/8" Quick Connect Hydronix ISF Series Inline Sediment Filters are designed to reduce sand, particles and sediment to produce cleaner, clearer...
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$10.81
$9.73
Sale
$35.94
$32.35
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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$35.94
$32.35
Sale
$74.99
$67.50
Pro+Aqua Complete Reverse Osmosis Yearly Replacement Filter Set. Includes 1 sediment filter (Stage 1), 2 triple capacity carbon block filters (Stag...
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$74.99
$67.50
Sale
$30.25
$27.23
Hydronix ICF-10 inline coconut shell carbon filters have 1/4" npt connections and are suitable for drinking water filtration applications. The coco...
View full detailsSale
$30.25
$27.23
Sale
$29.00
$26.10
This Hydronix ICF-10Q inline coconut filter has 1/4" quick-connect connections and is suitable for drinking water filtration applications. This NSF...
View full detailsSale
$29.00
$26.10
Sale
$12.25
$11.03
Hydronix ISF-10Q inline sediment filters have 1/4" QC connections and are suitable for Drinking water filtration applications. The internal polypro...
View full detailsSale
$12.25
$11.03
Sale
$7.31
$6.58
Hydronix ICF-6 inline coconut shell carbon filters have 1/4" npt connections and are suitable for drinking water filtration applications. The cocon...
View full detailsSale
$7.31
$6.58
