CLEARBROOK 2 STAGE WHOLE HOUSE WATER FILTER 20 dual filtration system big blue. This is a new-old-stock Clearbrook 2 stage water filter system that I got from a government surplus sale. I got several of these and I think they were supposed to be used on FEMA trailers but were extras or whatever, they were never used. It will come with 2-3/4 cut off valves, the valves have a hose fitting installed which led me to believe that these were intended for Fema trailers. The filters measure 20″ x 4.5″ and are a prefilter and a primary filter. The outside dimensions are roughly 24″ high x 16″ wide x 8.5 deep(without the valves). FREE scheduling, supersized images and templates. Get Vendio Sales Manager. Make your listings stand out with FREE Vendio custom templates! Over 100,000,000 served. Get FREE counters from Vendio today! The item “CLEARBROOK 2 STAGE WHOLE HOUSE WATER FILTER 20 dual filtration system big blue” is in sale since Thursday, March 24, 2016. This item is in the category “Home & Garden\Home Improvement\Plumbing & Fixtures\Water Filters”. The seller is “dixietrading” and is located in Houston, Mississippi. This item can be shipped to United States.