4.5 x 20 Filter Housings for Whole House Applications

US Water also offers a full line of commercial-grade 4.5” x 20” filter housings. 4.5” x 20” filter housings are generally for point-of-entry applications. This is the ideal filter you should put on a most average size houses. Systems are available in a number of configurations, including single, dual and triple applications. Inlet sizes available are 3/4” and 1”. US Water 4-1/2” x 20” filter housings are equal to or better than Ametek, Pentek, Liquqtek, Hydronix, American Plumber, Culligan and any other 4-1/2” x 20” filter housing.

18 Products

US Water 4.5 x 20 High Flow Filter Housing
REGULAR PRICE: $216.59 SALE PRICE: $129.95
US Water Magna Pre-Filter | Up to 25 GPM
REGULAR PRICE: $316.59 $189.95 to $214.95
US Water Interceptor Pre-Filter | Up to 25 GPM
REGULAR PRICE: $481.68 SALE PRICE: $289.00
US Water Disruptor Filter System |Up to 25 GPM
REGULAR PRICE: $581.68 SALE PRICE: $349.00
US Water Limeblaster Salt-Free Water Conditioner | Up to 25 GPM
REGULAR PRICE: $331.67 SALE PRICE: $199.00
US Water 4.5 x 20 Dual High Flow Filter System
REGULAR PRICE: $449.93 SALE PRICE: $269.95
US Water Limeblaster Modular Dual Salt-Free Conditioning & Chlorine Removal System
REGULAR PRICE: $749.93 SALE PRICE: $449.95
US Water 4.5 x 20 Triple High Flow Filter System
REGULAR PRICE: $633.26 SALE PRICE: $379.95
US Water 4.5 x 20 Triple Floor Mount High Flow Filter System
REGULAR PRICE: $833.27 SALE PRICE: $499.95
US Water 4.5 x 20 Quad Floor Mount High Flow Filter System
REGULAR PRICE: $1,083.27 SALE PRICE: $649.95
US Water Rack-Mounted High Flow Filter System | Parallel Flow
REGULAR PRICE: $2,991.73 SALE PRICE: $1,795.00
US Water Rack-Mounted High Flow Filter System | Series Flow
REGULAR PRICE: $1,748.37 $1,049.00 to $1,399.00
US Water Big Blue Commercial Filter Housing 4.5 x 20 | H-4520
REGULAR PRICE: $166.59 SALE PRICE: $99.95
US Water Big Clear Commercial Filter Housing 4.5 x 20 | H-4520-C
REGULAR PRICE: $199.92 SALE PRICE: $119.95
US Water Big Blue Dual Filtration System 4.5 X 20 | BBF2-20
REGULAR PRICE: $383.26 $229.95 to $319.95
US Water Big Blue Commercial Triple Filtration System 4.5 X 20 | BBF3-20
REGULAR PRICE: $483.26 $289.95 to $409.95
US Water Purely EZ Whole House Triple Filter System | City Water Model
REGULAR PRICE: $998.35 SALE PRICE: $599.00
US Water Big Blue Floor Mount Triple Filtration System 4.5 X 20 | BBF3-20-FM
REGULAR PRICE: $783.27 $469.95 to $589.95
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