KeenSEN 20inch, Ultra low Pressure Membrane made of Filmtec material XLE 4021, Technology from the USA, high quality, supplied by an external company specially selected by Telewashwinkel.

The performance is close to the high-efficiency membranes on the market. Able to operate at very low pressures (100 psi / 6.8 Bar)

the range of these membranes has an excellent rejection rate of 97.5-98.5%, which combined with their low pressure capabilities delivers significant energy savings.