New Authentic DuPont (Dow) Filmtec BW30-1812-75 High Rejection Reverse Osmosis Membrane (Replacement for discontinued Dow Filmtec TW30-1812-75 membrane). Dow Filmtec is the #1 selling membrane in the world, delivers up to 20% greater water production than comparable brands, and is known for outstanding quality. Each membrane contains a QR code for verification of authenticity.

Membranes can be purchased 730 cc/min (3.7:1 brine ratio). We recommend flow restrictor replacement each time the RO membrane is changed.

Maximum Operating Temperature 113°F (45°C)

Maximum Operating Pressure150 psig (10bar)

Maximum Feed Flow Rate 2.0 gpm (7.6 lpm)

pH Range, Continuous Operation 2–11

Maximum Feed Silt Density Index (SDI) SDI5

Stabilized salt rejection 98% (performance measured by manufacturer at 250 ppm NaCl, 77F, and 15% water recovery)

Free Chlorine Tolerance <0.1ppm

Maximum temperature for continuous operation above pH10 is 95F (35C). Under certain conditions, the presence of free chlorine and other oxidizing agents will cause premature membrane failure. Since oxidation damage is not covered under warranty, Dow Water & Process Solutions recommends removing residual free chlorine by pretreatment prior to membrane exposure. Please refer to technical bulletin "Dechlorinating Feedwater"for more information.

Note: Actual performance will vary, based on supply water quality, contaminants, temperature, and temperature. Jett Water Systems makes no performance guarantee for Filmtec membranes, as factors affecting membrane performance and life cycle are outside our control.