Culligan D-20A GAC Drinking Water Filter

Culligan D-20A | Our#: 175766

1 Year Purchase Guarantee - Free returns for a year, up to $1000 of purchase protection.

Culligan D-20A GAC Drinking Water Filter

Culligan D-20A GAG Drinking Water Filter - 5 Micron

The Culligan D-20A filter is the Granular Activated Carbon 10" filter for some Culligan undersink drinking water systems.  The D-20A can be used to reduce the bad taste and odor of chlorine from your drinking water.   This filter uses Granular Activated Carbon (GAC) media. Used as post-filter in some reverse osmosis systems.


  • Fit's some Culligan drinking water systems
  • Reduces chlorine bad taste and odor from your drinking water
  • Culligan D-20A water filter life up to 1000 gallons or 12 months per filter
  • Can be used on "city" or well water
  • NSF Certified to standard # 42


Capacity: 1000 gallons
Certifications: NSF 42
Dimensions: 9.75" L X 2.5" Dia.
Material: Granular Activated Carbon
Micron Rating: N/A
Reduction Claims: chlorine taste, odor

Replaces These Filters:

American Plumber: WCC
Ametek: C-10
Dupont: GAC-1
Dupont: GAC1-D
Dupont: GAC1-S
Dupont: GAC1-SS
Dupont: GAC1D
Dupont: GAC1S
Dupont: GAC1SS
Dupont: WFPFC9001
Flotec: TO2
Omni: GAC1
Sears: 34375
True Value: 826-746

Fits In These Systems:

Ametek: CTR-210
Culligan: RO-3000
Culligan: RO-3500
Culligan: RVF-10
Culligan: SY-2000
Culligan: SY-2650
Culligan: US-600
Pentek: US-1000
Pentek: US-1500