Ro membrane All our ro & nf membranes are made of filmtec membrane sheet, so they have the same quality as filmtec membrane, but they are much cheaper. We have many standard sizes membranes, such as tw30-1812-50, tw30-1812-75, tw30-2012-100 for home drinking water system; tw30-4021, bw30-4021, tw30le-4040, bw30le-4040, tw30xle-4040, bw30xle-4040, bw30-365, bw30-400 for industrial use. Sw30-4040, sw30-2540 for purifying sea water etc...At the same time, we can do some customized membrane, such as tw30-2012-150, tw30-2812-200, tw30-3012-300 Carton
