FOOD GRADE MATERIAL-Made of 100% high quality coconut carbon .
STANDARD-Fits all standard 20" sized big blue filter housing, size at 4.5" diameter x 20" height
Function-Carbon block filter is used to remove Remove chlorine, taste & odors, very fine particulates. life time:6-12months ,these can be used for residential and commercial applications
GOOD PACKING-All Filters are individually wrapped&sealed and extend shelf life
RESPONSABLE MANUFACTURER- ISO9001:2008 certificated Manufacturer ,also Member of Water Quality Association (WQA)