Inline Refrigerator Water Filters

Inline refrigerator water filters are a cost-effective alternative to traditional built-in refrigerator filter replacements, and they work equally well for ice makers, under-sink applications, and garden hose connections. All Filters carries SpiroPure inline filters in standard 10" x 2" size with three connection options: 1/4" FNPT, 1/4" Quick Connect, and 3/8" Quick Connect. Choose from coconut shell GAC carbon for chlorine reduction and taste improvement, carbon with MineralPlus remineralization media for improved alkalinity and pH, or sediment filters for particle removal. All models replace every 6 to 12 months. Looking for a standard fridge filter? Browse our water filter for refrigerator replacements.

SpiroPure SP-IM120

SpiroPure SP-IM120 MineralPlus Inline Carbon Alkaline Filter, 1/4" FNPT, 2" x 10"

List Price: $22.10

Our Price: $11.05

Save: $11.05!
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Replace every 6-12 months

1/4” FNTP MineralPlus & coconut shell GAC carbon inline filter replacement improves taste, smell, and alkalinity of water

SpiroPure SP-IM120QC

SpiroPure SP-IM120QC MineralPlus Inline Carbon Alkaline Filter, 1/4" Quick-Connect, 2" x 10"

List Price: $23.62

Our Price: $11.81

Save: $11.81!
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Replace every 6-12 months

1/4" QC MineralPlus & coconut shell GAC carbon inline replacement improves taste, smell, and alkalinity of water

SpiroPure SP-IM382QC
  • 4.5 Stars
  • (1)

SpiroPure SP-IM382QC MineralPlus Inline Carbon Alkaline Filter, 3/8" Quick-Connect, 2" x 10"

List Price: $24.14

Our Price: $12.07

Save: $12.07!
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Replace every 6-12 months

3/8" QC MineralPlus & coconut shell GAC carbon inline replacement improves taste, smell, and alkalinity of water

SpiroPure SP-IC100 NSF Component
  • 5 Stars
  • (3)

SpiroPure SP-IC100 Inline Carbon Filter, 1/4" FNPT, 2" x 10"

List Price: $11.68

Our Price: $5.84

Save: $5.84!
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Replace every 6-12 months

1/4" FNTP coconut shell GAC carbon inline filter replacement for your fridge, under sink, or other water filter applications

SpiroPure SP-IC100QC NSF Component
  • 5 Stars
  • (7)

SpiroPure SP-IC100QC Inline Carbon Filter, 1/4" Quick-Connect, 2" x 10"

List Price: $13.44

Our Price: $6.72

Save: $6.72!
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Replace every 6-12 months

1/4" Quick-Connect coconut shell GAC carbon inline replacement for your fridge, under sink, or other water filter applications

SpiroPure SP-IC380QC NSF Component
  • 4 Stars
  • (1)

SpiroPure SP-IC380QC Inline Carbon Filter, 3/8" Quick-Connect, 2" x 10"

List Price: $13.72

Our Price: $6.86

Save: $6.86!
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Replace every 6-12 months

3/8" Quick-Connect coconut shell GAC carbon inline replacement for your fridge, under sink, or other water filter applications

SpiroPure SP-IS105
  • 5 Stars
  • (1)

SpiroPure SP-IS105 Inline Sediment Filter, 1/4" FNTP, 2" x 10"

List Price: $11.68

Our Price: $5.84

Save: $5.84!
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Replace every 6-12 months

1/4" FNTP inlet/outlet sediment inline filter replacement for your fridge, under sink, or other water filter applications

SpiroPure SP-IS105QC
  • 5 Stars
  • (3)

SpiroPure SP-IS105QC Inline Sediment Filter, 1/4" Quick-Connect, 2" x 10"

List Price: $11.92

Our Price: $5.96

Save: $5.96!
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Replace every 6-12 months

1/4" Quick-Connect Inlet/Outlet sediment inline replacement for your fridge, under sink, or other water filter applications

SpiroPure SP-IS385QC

SpiroPure SP-IS385QC Inline Sediment Filter, 3/8" Quick-Connect, 2" x 10"

List Price: $12.18

Our Price: $6.09

Save: $6.09!
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Replace every 6-12 months

3/8" Quick-Connect Inlet/Outlet sediment inline replacement for your fridge, under sink, or other water filter applications

Why Choose Inline Refrigerator Water Filters from All Filters?

SpiroPure inline filters from All Filters are priced at roughly half the list price of comparable products yet do not sacrifice filtration quality. Coconut shell GAC carbon is a premium media choice that delivers effective chlorine reduction and taste improvement in a compact inline form factor. Our MineralPlus models go further, combining carbon filtration with remineralization media that restores beneficial minerals and raises pH. These filters are ideal for households that want the benefits of more alkaline water without a dedicated system. All Filters offers seven-day customer support and fast nationwide shipping, with free shipping on orders over $99 and Super Value packs. We stand behind our SpiroPure inline filters with a 30-day satisfaction guarantee.

How to Install Inline Refrigerator Water Filters

Installation is simple and requires no special tools for most setups. Start by shutting off the water supply to your refrigerator. Locate the existing water line behind or beneath the fridge, typically white or clear 1/4" or 3/8" tubing. Cut the line at a convenient point, leaving enough slack to connect both ends of the inline filter. For Quick Connect fittings, push the tubing firmly into each port until it seats. For FNPT fittings, use a small wrench and thread-seal tape to secure the connection. Restore the water supply and run several cups of water through the dispenser to flush the new filter before use. The entire process typically takes under 15 minutes.

FAQs on Inline Refrigerator Water Filters

How do I choose the best inline water filter for my refrigerator?

Start with your connection type: All Filters inline filters are available in 1/4" FNPT, 1/4" Quick Connect, and 3/8" Quick Connect to match standard refrigerator water line fittings. Then choose your media: carbon for chlorine and taste, carbon with MineralPlus remineralization if you want improved alkalinity, or sediment if your main concern is particle filtration.
Yes. An inline filter for the fridge can replace a built-in internal filter in many cases, particularly if the internal filter is expensive or difficult to source. Some refrigerator models allow you to bypass the internal filter housing entirely when an inline filter is installed on the supply line. Check your refrigerator's manual to confirm bypass options for your model.
A built-in refrigerator filter mounts inside the unit—usually in the grille or inside the door—and is brand-specific. An inline refrigerator filter installs on the external supply line and is largely universal, making it compatible with virtually any refrigerator that uses standard 1/4" or 3/8" tubing. Inline filters are typically less expensive and easier to source.
SpiroPure inline refrigerator filters are rated for replacement every 6 to 12 months. Water quality and usage volume affect actual service life. For example, households with higher-than-average water consumption or water that is particularly high in chlorine or sediment may need to replace closer to the 6-month mark to maintain filtration performance.
An inline refrigerator water filter connects directly into the water supply line that feeds your refrigerator's dispenser and ice maker. Unlike built-in filters that mount inside the fridge compartment, inline filters install externally on the tubing behind or beneath the unit. They filter water at the line level before it reaches the dispenser or ice maker.