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Water Filter Housing & Application Chart

PlumbingSupply.com® is pleased to offer a complete filter reference chart for our top-quality American Plumber filter cartridges. To use this guide, all you need to do is select your housing size and find the filter that will work for you - or vice versa, if you're looking for a new housing. Click any of the model number links to purchase that filter or housing.

Filter Cartridge	Micron Rating***	Cold Water Filter Housings - Flow Rate (Gallons Per Minute)**
Filter Cartridge	Micron Rating***	W385-PR 5" housing	W38-PRA 10" housing	W34-PR 10" housing	WC34-PR 10" housing	W10-PR 10" housing	W2010-PR 20" housing	W15-PR 10" housing	W2015-PR 20" housing
For Sediment:
W5P478	5	5	-	-	-	-	-	-	-
W5P	5	-	5	10	10	-	-	-	-
WPD-110	5	-	5	10	10	-	-	-	-
W5CP	5	-	5	10	10	-	-	-	-
W5W	5	-	5	7	7	-	-	-	-
W20CLA	20	-	5	12	12	-	-	-	-
W25P	25	-	5	10	10	-	-	-	-
WPD-25	25	-	5	10	10	-	-	-	-
W30PE	30	-	5	12	12	-	-	-	-
W30W	30	-	5	10	10	-	-	-	-
WPD-50	50	-	5	10	10	-	-	-	-
W50PE	50	-	5	12	12	-	-	-	-
W50W	50	-	5	10	10	-	-	-	-
WDGD-5005	5	-	-	-	-	10	-	10	-
W5CPHD	5	-	-	-	-	20	35*	20	35*
W20CLHD	20	-	-	-	-	20	35*	20	35*
WDG-7525	25	-	-	-	-	10	-	10	-
W30PEHD	30	-	-	-	-	25	40*	20	40*
W50PEHD	50	-	-	-	-	25	40*	20	40*
WDG-5005-20	5	-	-	-	-	-	35*	-	35*
W20CLHD20	20	-	-	-	-	-	40*	-	40*
WDGD-7525-20	25	-	-	-	-	-	40*	-	40*
For Drinking Water:
W.5CB478	0.5	1	-	-	-	-	-	-	-
W5CIP478	5	1	-	-	-	-	-	-	-
WGC478	-	-	1	-	-	-	-	-	-
W.5CB	0.5	-	1	-	-	-	-	-	-
WLC-R	0.5	-	0.6	-	-	-	-	-	-
W5CIP	5	-	5	5	5	-	-	-	-
RWC-5	5	-	2	-	-	-	-	-	-
WCC	20	-	1	-	-	-	-	-	-
WGCHD	-	-	-	-	-	2	-	2	-
For Whole House Taste & Odor:
W.5CBHD	0.5	-	-	-	-	4	8*	4	8*
WRC25HD	25	-	-	-	-	3	-	3	-
WRC25HD20	25	-	-	-	-	-	8	-	8
For Scale & Corrosion Inhibiting:
WPCC	-	-	5	5	5	-	-	-	-

* With two cartridge coupler Flow Rates are calculated for cartridges according to the housing in which they are being used * Micron ratings are nominal

Filter Cartridge	Micron Rating***	Hot & Cold Water Filter Housings - Flow Rate (Gallons Per Minute)**
Filter Cartridge	Micron Rating***	WH34 10" housing	ST-1 10" housing	ST-2 20" housing	ST-3 30" housing
For Sediment:
W5P	5	10	10	10	10
WPD-110	5	10	10	10	10
W5CP	5	10	10	10	10
W5W	5	7	7	7	7
W20CLA	20	12	12	12	12
W25P	25	10	10	10	10
WPD-25	25	10	10	10	10
W30PE	30	12	12	12	12
W30W	30	10	10	10	10
WPD-50	50	10	10	10	10
W50PE	50	12	12	12	12
W50W	50	10	10	10	10
For Drinking Water:
W5CIP	5	5	5	10	15
For Scale & Corrosion Inhibiting:
WPCC	-	5	-	-	-

* With 2 cartridges and coupler Flow Rates are calculated for cartridges according to the housing in which they are being used * Micron ratings are nominal

Frequently Asked Questions

Q. "What is a micron rating?"
A. The average size of the openings between pieces of the filter media are represented in microns. For example, a 40-micron filter has larger openings than a 5-micron filter. Consequently, the 40-micron filter element will let larger particles pass through the filter than the 5-micron element.

As a general rule, the smaller micron rating for a filter is better, but as with most everything, there is a trade-off. Flow capability usually drops off as the micron rating gets smaller. To overcome this, low micron-rating filters must have larger elements to keep from sacrificing precious flow.

You may want to consider sediment filtration such as the Lakos sediment filtration system to remove larger particles, then possibly install a whole house water filter to take out smaller particles.

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