50 GPD (gallons per day) TFC style reverse osmosis membrane RO - Fits Standard Size Membrane Housing.
Tip to tip length 11.75 inches x 1.8" diameter.
(TFC-50), TFC means = "Thin Film Composite" Membrane Also sold as PN TLC-50 or Fastek TLC
The GE Osmonics/Desal TFM-50 (# 1204694 ) is the equivalent sold to replace the Filmtec TW30-1812-50 membrane. NEW LOW PRICE for 2010