... )Filtration rate:1mic,5mic,10mic(3)Standard length:10",20",10" BB,20" BB(4)Category:coal carbon, ... VOCs, pesticides and taste / odor contaminants(8)change cartridge every 6-10 months or upon substantial pressure reduction 3. ... Taste & Odor Reduction @ Flow Rate(gpm)*1CTO-10"2-7/8" X9-3/4"(73mmX248mm)57.0 psi @ 1 ... 000 gallon @ 1 gpm>170,300liters@ 3.8 L/minCTO-10"BB4-5/8" X9-3/4"(117mmX248mm)53.0 psi ...