Hydro Logic BIGboy Extra High Capacity De-Chlorinator and Sediment Filter, 420 GPH (HL31005)BIGboy from Hydro Logic This filter can be set up as either a whole house (point of entry) filter or a stand alone (point of use)m filter. The BIGboy has high flow rates of 7 gallons per minute and a very long filter life of 25,000 gallons (50,000 gallon filter life with upgraded KDF CAT Carbon Filter). The filter can effectively remvoe up to 99% of free chlorine and sediment (sand, silt, rust), objectionable tasts and odors, and volatile organic