Culligan US-EZ-4 Under Sink Drinking Water Filter System

Price $91.99
Availability: In stock
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  • 1 Filter $91.99  
  • 3 Filters Price $89.19 each
  • 6 Filters Price $86.59 each
Culligan US-EZ-4 undersink Water Filter System for installation under the sink to improve water quality. Produces healthier, better-tasting drinking and cooking water. Quick-connect fittings double water shut-off. undersink water filter is NSF/ANSI Standard 42 & 53 Certified. Easy twist-on, twist-off design mechanism that does not leave a mess.
Package Qty 1
Used In Brands Culligan
Manufacturer's Id US-EZ-4
UPC 033663006461
Actual Size (in) 8 3/4 inches (length) x 3 3/4 inches (width) x 14 inches (height)
Actual Size (cm) 22.23 x 9.525 x 35.56
Filter Life (gallons) 500
Filter Life (liters) 1,892.71
Filter Life (months) 6 months
Micron Rating (Nominal) 0.5
Operating Pressure (psi) 30 - 100
Operating Temperature (°F) 40 - 100
Operating Temperature (°C) 4.4 - 37.8
Flow Rate (gpm) 0.5
Flow Rate (lpm) 1.893
Fitting Size (inches) 1/4 inch
Certifications NSF/ANSI Standard 42, NSF/ANSI Standard 53
Warranty Guarantee 2 year limited warranty
Includes One RC-EZ-4 Level 4 filter cartridge, Filter head with built-in bracket, Mounting screws, Water supply adapter, Lead-free faucet and fittings, 1/4 inch plastic tubing, Cartridge change reminder sticker, Installation and Operating Instructions


Reduces the following contaminants:

  • Bad Taste and Odor
  • Chloramines
  • Sediment

The CULLIGAN-US-EZ-4 is comparable with the following part numbers

4294138 RC-EZ-1
US-EZ-4 1019054

Installation Guide


  1. The battery is installed behind the faucet. There is a lip there with a battery insert. Putting the battery there powers the indicator light on the faucet

Reset Instructions