AMI 4" x 40" Reverse Osmosis Membrane | Tap or Brackish Water | High Flow 3,000 GPD RO Membrane AMI Part Number: M-T4040AHF Membrane Size (Nominal): 4 x 40 Membrane Dimensions: 3.9"Dia. x 40"L Flow Rate: 3,000 GPD (11,355 LPD) Applied Pressure: 225 psi (1.6 MPa) Stabilized Salt Rejection: 99.5% For Housing: Standard 4" x 40" Outer Wrap: Tape Wrapped Membrane Type: Tap or Brackish Water Membrane Sheet: TFC (Thin Film Composite) Element Type: Spiral Wound Feed Water Test Temperature: 77°F (25°C) Single Element Recovery: 15% Chlorine Tolerance: 0 Feed water pH Range: 2-11 End Style: Male PWT (Stinger Style) Country of Manufacture: United States (USA) AMI commercial RO membrane elements produce high quality water from tap or brackish water in small commercial RO systems, and are among the finest in the industry. With hundreds of thousands of membranes in operation in water filtration systems world-wide, AMI membranes have earned a reputation of delivering consistent, reliable, and long lasting performance, making AMI Membranes the natural choice for use in small commercial RO systems. AMI Small Commercial RO Membranes are constructed of tap water TFC (thin film composite) membrane material and fit standard PVC and Stainless Steel RO Membrane Housings. M-T4040AHF can be used as direct replacement for many industry-standard 4x40 Size RO Elements with 3/4" male product water tubes ("stinger style") which are rated at 225psi. AMI Membranes are Made in the USA in their ISO 9001:2015 Certified Facility and are 100% Quality and Performance Tested.