The D-40A and D-40 (older model) are not the same cartridge. Revisions to the D-40A include better intake and outlet channels to create greater water flow. In addition, the D-40A cartridge will not fit the older housing model US-550. Only the US-600A (current model) and US-600 (predecessor model to the US-600A) are compatible with the D-40A.
Culligan D-40A Drinking Water Filter Replacement Cartridge Overview
- Filtration: Level 4 Premium Filtration
- Cartridge Lifetime: 6 months or 600 gallons (whichever comes first)
- Flow Rate: 0.6 gallons per minute
- Filter Pore Size: 0.5 micron
- Additional Compatible Cartridges: D-20A (Leve 1 Basic Filtration) or D-30A (Level 2 Extra Filtration)
Culligan D40A Replacement Filter Advantages
- NSF certified performance
- Newer, improved version of the older D-40 / D40
Compatible / Interchangeable Models
- Ace Hardware 48167
- American Plumber W-40 / WLC-R
- Flotec LC1
- GE FXULC
- MasterPlumber TrueValue 852-657
- Omni CB3
- Sears 34377
- Teledyne WaterPik IR-70
The
Culligan D-40A filter replacement cartridge has been tested and certified by NSF International under NSF/ANSI Standard 42 & 54 for the reduction of the following contaminants:
- Chlorine
- Bad taste and odor
- Lead
- Mercury
- Cyst / Cysts (such as cryptosporidium & giardia)
- Sediment
- Particulate (Class I)
- Turbidity
- Asbestos
- Atrazine
- Lindane
- Chloramine / Chloramines
