Dow Filmtec Reverse Osmosis Membrane 100 GPD TW30-1812-100 far high rejection rates, greater durability and life as compared to cellulose (CTA) membranes TW30 series elements tested at 50 psi and will purify about 20% more water than competitive elements rated at 60 psi high pH range tolerance
Pentek RO-2500 Reverse Osmosis System (4-stage) MADE IN USA