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Home > Water Filter Brands > Culligan Water Filters > Culligan Under Sink Water Filter Systems > CULLIGAN-US-550


Culligan US-550 Under Sink Water Filter System

(Filter cartridge sold separately)

Culligan US-550 under sink water filter system. The Culligan US550 undersink system uses the Culligan D-20 drinking water filter or the Culligan D-10 sediment water filter. The Ametek US550 improves drinking water taste and odor
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Product Code: CULLIGAN-US-550
  • Culligan US-550 Under Sink Water Filter:
  • The Culligan US-550 is a compact under sink water filter system that fits easily under most kitchen sinks.
  • The Culligan US-550 filter system produces healthier, better-tasting drinking water.
  • The Culligan US-550 water filter system reduces chlorine taste and odor.
  • The Culligan US-550 drinking water filter system is NSF International Certified.
  • Culligan US550 Under Sink System Includes:
  • Ready to install under sink water filter housing with o-ring and mounting bracket
  • 3/8 inch inlet/outlet for installation on 3/8 inch or 1/4 inch copper line or plastic tubing
The Culligan US-550 model number has been discontinued. You can still purchase the same housing below. The Pentek 158149 is the same housing as the US-550. Also order the bracket to mount the housing, the filter wrench, and a filter. The bracket, wrench, and filter do not come with the 158149 housing.

Culligan D-20 replacement filters for the Culligan Ametek US-550 can be purchased below.
  • Manufacturer: Culligan 158401
  • Culligan US-550 Replacement Filter:
  • The Culligan D-20 water filter cartridges fit in the Culligan US-550 under sink water filter system. The D-20 filter reduces chlorine taste and odor.
  • The Culligan D-10 water filter cartridges fit in the Culligan US-550 under sink water filter system. The D-10 is a cellulose filter and CANNOT be used on well water.
  • The Culligan US-550 also accepts other standard 9-3/4 inch double open end water filter cartridges (Purchased separately).
  • Culligan US550 Parts & Accessories:
  • Purchase the OR-38 o-ring below for the Culligan US550 Drinking Water System
  • Purchase the SW-1 wrench below for the Culligan US-550
  • Purchase the SL-BR bracket below for the Culligan US550 Drinking Water System

This item has been discontinued
Replacement Filters and Parts or Alternative System for the Above Unavailable Product
American Plumber, Culligan, Pentek SW-1 Slim Line Housing Wrench American Plumber, Culligan, Pentek SW-1 Slim Line Housing Wrench
American Plumber, Culligan, Pentek OR-38 O-Ring (3.5 American Plumber, Culligan, Pentek OR-38 O-Ring (3.5" Diameter) Pentek 158149 Under Sink Water Filter System Pentek 158149 Under Sink Water Filter System Culligan D-10 Under Sink Replacement Filter (2-Pack) Culligan D-10 Under Sink Replacement Filter (2-Pack) Culligan D-20A Under Sink Replacement Water Filter Culligan D-20A Under Sink Replacement Water Filter Add to Cart