Reverse Osmosis Membrane Element 2521 TFC HF1

Category: Reverse Osmosis (RO) Membrane – Brackish Water

Model: 2521 TFC HF1

Membrane Type: Thin-Film Composite (TFC)

Element Size: 2.5" × 21" (2521)

Series: HF1 – High Flow / High Rejection

✔ General Specifications

• Permeate Flow Rate: 300–400 GPD (depending on manufacturer conditions)
• Salt Rejection: 98–99.5%
• Membrane Material: Polyamide Thin-Film Composite (TFC)
• Suitable for: Brackish water & city water RO systems
• Application: Residential / light commercial reverse osmosis

✔ Operating Conditions

• Operating Pressure (typical): 150–225 psi
• Maximum Pressure: 600 psi
• Maximum Temperature: 45 °C
• pH Range (continuous operation): 2 – 11
• pH Range (cleaning, short term): 1 – 13
• Maximum Free Chlorine: < 0.1 ppm
• Maximum Feedwater SDI: SDI ≤ 5

✔ Dimensions

• Diameter: 2.5" (≈ 6.4 cm)
• Length: 21" (≈ 53.3 cm)
• Membrane Type: Spiral-wound TFC element
• End Connection: Standard 2521 RO housing compatibility

✔ Typical Applications

• Drinking water purification
• Small commercial RO systems
• Food service / laboratories
• Light industrial water treatment
• Brackish water desalination (low to medium TDS)