Genuine Valuetrex VX-TW30-150D 150 GPD TFC is a dry RO membrane. This membrane is rated at 50 GPD and has a salt rejection of 96%. 

Perfect for highly chlorinated water and recommended to be used with a sediment and carbon pre Filters. The residual chlorine in municipal or city water will destroy the Thin Film Composite (TFC) membrane so it's not recommended to use this reverse osmosis membrane alone.

Valuetrex VX-TW30-150D 150 GPD TFC-Dry Reverse Osmosis Membrane elements are perfect for home , workspace tap water or well, or to be used in small machines such as coffee makers or dental/surgical systems. The industry's most reliable advanced membrane technology and automated fabrication, allow these elements to deliver consistent performance that equipment suppliers, water treatment dealers, and residential customers can rely on. This membrane fits in standard 1.8" x 12" residential RO membrane housings.