$36.50
Works with 5 stage dual carbon block RO/DI Filter Systems. Need a Membrane? Just add it to your filter set and save on shipping. MPN#Opt2carb#
OPTIMA VISION DOUBLE CARBON FILTER SET
Nano 3 Stage Pre Filter Replacement Set. Need a membrane? Add one to your filter set and save on shipping! MPN#HMN3PRS#
Works with 5 stage dual carbon block RO/DI Filter Systems. Need a Membrane? Just add it to your filter set and save on shipping MPN#OPT2Carbwbag#