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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
Retail Price: $22.99
  • 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

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
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