- Description: HF4-4021
- Membrane Type: Polyamide Thin-Film Composite
- Applied Pressure: 100 psi
- Permeate Flow Rate (gpd): 1,000
Stabilized Sale Rejection %: 99
- Dimensions: 4.0" x 21"
- AXEON Part Number: 200390
- Formerly known as RO UltraTec HF4-4021
- Maximum Operating Temperature (°F / °C): 113 / 45
- Maximum Operating Pressure (psi / bar): 600 / 41
- pH Range, Continuous Operation*: 2 – 11
- pH Range, Short Term Cleaning (30 Min.): 1 – 13
- Maximum Feed Silt Density Index (SDI): 5
- Chlorine / Chloramine Tolerance (ppm): 0
- Maximum Feed Flow Rate (gpm): 2.5" = 6; 4.0” = 14
* Maximum temperature for continuous operations above pH10 is 95°F / 35°C.
Comparable Membrane: FilmTec™ XLE-4021; GE-Osmonics® AK4021TM
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