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Culligan US-600 Under Sink Water Filter System

Price $60.99 List Price Price $86.99 Save 29%
Availability: In Stock
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  • 1Filter$60.99 
  • 3Filters Price $36.89 each
  • 6Filters Price $35.69 each
The Culligan US-600 compact undersink water filter system fits easily under most kitchen sinks. The Culligan US-600 has a slim, space-saving design. The Culligan US-600 water filter system produces healthier, better-tasting drinking water. The Culligan US-600 water filtration system reduces chlorine taste and odor from your water. The Culligan US-600 undersink filter system is NSF International Certified. The Culligan US-600 undersink water filter housing weighs 1.75 pounds, and the dimensions are 12.5-inch x 5-inch x 5-inch. Note: For cold water use only. After prolonged periods of non-use (such as during a vacation) it is recommended that the system be flushed thoroughly. Let water run for 5-6 minutes before using. The included Culligan D-20 water filter improves drinking water taste and odor. Culligan US600 undersink System has quick-connect fittings for easy installation and replacement of the undersink water filter. The Culligan US-600 has 3/8 inch inlet/outlet for undersink connections (all hardware included). Ready to install US-600 undersink water filter housing, Culligan D-20 water filter cartridge, quick-connect fittings, tubing, and installation instructions.
Package Qty1
Used In BrandsCulligan
Manufacturer's IdUS-600
Actual Size (in)12 inches (length) x 4 1/4 inches (outside diameter)
Actual Size (cm)30.48 x 10.795
Outside Diameter (inches)4.25
MediaGranular Activated Carbon
Primary Filter MediaGranular Activated Carbon
Filter Life (gallons)1,000
Filter Life (liters)3,785.41
Filter Life (months)12 months
Operating Pressure (psi)30 - 125
Operating Temperature (°F)40 - 100
Operating Temperature (°C)4.4 - 37.8
Flow Rate (gpm)1
Flow Rate (lpm)3.785
Fitting TypeQuick Connect
Fitting Size (inches)3/8 inch
Country of ManufactureChina
Warranty Guarantee5 year limited warranty
IncludesFilter housing with built-in bracket, Culligan D-20 filter cartridge, Culligan SW-5 housing wrench, Installation instructions, Cartridge change reminder sticker, Mounting hardware, 3/8 inch plastic tubing

Reduced Contaminants

The CULLIGAN-us-600 reduces the following contaminants:

  • Bad Taste and Odor
  • Chlorine Taste & Odor 89.00%

The CULLIGAN-us-600 is comparable with the following part numbers

4158622 Ametek US-600 D-10 D-15
D-20 D-28 D-30 D-40
OR-233 SW-5 US-600 US-600A

Installation Guide

User Guide


  1. For standard under-sink installation on 3/8-inch cold water line (copper or PVC). Turn off cold water supply and open nearest faucet to release pressure in pipes before starting. Place a tray or towels under the cold water line to catch excess water
  2. Use mounting bracket as a template to mark screw locations. Mount filter in marked location using mounting bracket. NOTE: Allow 1-1/2 inches (33 mm) clearance below housing to enable filter cartridge changes
  3. Remove a 3-inch (76 mm) section of pipe from the 3/8-inch (10 mm) cold water line. Deburr ends of remaining pipe with a file. Push a quick-connect elbow onto each end of remaining cold water line. Be sure to push elbow onto pipe until you hit a hard stop
  4. Determine the lengths of tubing needed to connect the filter to the cold water line. Cut tubing between black guide arrows and short enough to prevent kinking. Insert tubing into appropriate inlet or outlet fitting until it stops (approximately 5/8-inch)
  5. Slowly turn on the water supply to allow filter to fill with water, then press the red pressure-relief button on top of filter to release trapped air. Check for leaks before leaving installation
  6. To remove tubing, turn off the water to the filter and open faucet to drain pipes. Depress the gray collar around the inlet fitting and pull to release tubing. Repeat for outlet fitting. Routine maintenance and cartridge replacement do not require this
  7. To replace the filter; turn off water supply to filter, use a tray or towel under the system to catch any water that spills. Push red pressure-relief button. Remove and wash bottom of filter housing. Fill 1/3 full with water and 2 tbls of bleach. Rinse
  8. Discard used filter. Locate and remove large O-ring, wipe clean and set aside. Lubricate O-ring with clean silicone grease. Insert O-ring in groove and press into groove to ensure a proper housing seal. Insert new filter cartridge in bottom of housing
  9. Screw housing onto the cap and hand-tighten. DO NOT overtighten. Slowly turn on water to allow filter to fill with water, then press the red pressure-relief button on top of housing to release trapped air. Check for leaks
  10. After installation, flush the cartridge for 5 minutes to remove any fines before using the water. It is recommended that you run the tap at least 20 seconds prior to using water for drinking or cooking purposes