PRODUCT DISCRIPTION : +1st filter : PP 1 micron with cap on 2 heads , prevent un-purified water to get through the filter . +2nd : Rice husk activated carbon filter which has anti-germ and doube better filtration funtion to normal cocont carbon filter. 3rd filter: Compressed actived cocunt carbon filter (CTO) 4th filter: NASA membrane MADE IN USA 5th : T33 post carbon filter . *the system is equiped with 125 psi , 20,000 hour life , . Wisper working , high presure and large flow . It is one of the best quality pump in the line. *High quality high , low presure and auto shut off valve . *Presure tank with NSF and CE certification. *Competitive in price *Available CO form D for Asean countries to reduce tax