Poseidon series appoints the below high quality cartridge filters:

We are one of the few manufacturers who still insist on using only FDA/NSF certified filters. Quick-change cartridge design makes filter changes fast, clean and easy. No tools required for replacements. 

1stage:  5 Micron Sediment Filter / Quick-Change Filter

S300ST This 5micron sediment filter is made by Anti-Bacteria. High capacity filter removes dusts, particles and rusts. Product comply with FDA test standard. Anti-Bacterial: 99.70%, Use 100% pure PP fine fiber. Product series have been passed the test in accordance with the filtering effect test of ANSI-NSF standard 42 - particulate reduction class II-V of U.S.A. Maximum Flow : 0.75GPM Maximum Pressure:125PSI Maximum Temperature:100F Service Life: 1500GAL / 6 months Information   individual color box package

2 stage: Activated Carbon Filter / Quick-change filter

S300ND This granular activated carbon filter is composed of high-performance activated carbon that remove free chlorine, odor, organic contaminants, pesticides and chemicals that contributed to taste and odor. Maximum Flow : 0.75GPM Maximum Pressure:125PSI Maximum Temperature:100F. Service Life:1500GAL / 6 months Information individual color box package

3 stage: Activated Carbon Filter / Quick-change filter

S300RD This granular activated carbon filter is composed of high-performance activated carbon that remove free chlorine, odor, organic contaminants, pesticides and chemicals that contributed to taste and odor. Maximum Flow : 0.75GPM Maximum Pressure:125PSI Maximum Temperature:100F. Service Life:1500GAL / 6 months Information individual color box package