2nd stage Activated carbon block filter made with coconut shell carbon
Standard RO system setup is 1/4"
1st stage multi-layer 5 micron sediment filter made with pure polypropylene
chloramines
Improves taste and removes odor
Alton replacement filter pack for APEC RO systems Model: ROES-100 and RO-90 1/4" output RO-90 2nd stage Activated carbon blockA set of 5 filters for all stages 1st stage multi layer 5 micron sediment filter made with pure polypropylene, change every 6 12 months. Removes sediment, rust, dirt, and sand. 2nd stage Activated carbon block filter made with coconut shell carbon, change every 12 months. Removes chlorine, chloramines, taste, odor, THM, VOC, pesticide, herbicide, turbidity. 3rd stage Activated carbon block filter made with coconut shell carbon, change every 12 months.