Watts W-1812-50 RO Membrane

Watts Flowmatic W-1812-50 RO Membrane is a 50 gallon per day reverse osmosis thin film composite (TFC) membrane. Fits most standard RO units including but not limited to the Flowmatic FMRO4J, FMRO4G, FMRO5J, FMRO5G, FMRO5GP, FMRO4ERP, FMRO5-C, FMRO4-ZW, FMRO5MT, FMRO4-ERP.

The W181250 membrane is 1.8" x 11.8"

Membrane should be changed every 2-5 years depending on water quality and usage.