5.2: Commercial RO Membranes
Commercial RO membranes are fiberglass wrapped for durability, and operate at 150 psi. Available in standard 2.5” and 4” diameter sizes.
Features:
- Fiber Glass wrapped
- Performs at higher TDS
- Higher rejection rates
- High pH tolerance
Applications:
- Commercial and Light Industrial water plants
- Water Stores
- Food Processing
- Car Washes
- Pharmaceutical
Materials of Construction:
- Membrane: Thin Layered Polyamide Composite
- Brine Seal, O-Rings: EPDM
- Wrap: Polyester tape
- Operating Temp: 77 F (25 C), Max Temp: 45 C

Commercial RO Membranes
Item | Element Size* | Flow Rate* | Applied Pressure* | Price EA.^ |
MEM-ULP21-2521 | 2.5” X 21” | 300 GPD | 150 PSI | 99.0% @ 1,500 PPM |
MEM-ULP21-2540 | 2.5” X 40” | 750 GPD | ||
MEM-ULP21-4021 | 4” X 21” | 950 GPD | ||
MEM-ULP21-4040 | 4” X 40” | 92,400 GPD | ||
MEM-ULP11-4040 | 4” X 40” | 2,700 GPD | 98.0% @ 1,500 PPM |
* Specifications are nominal, intended for reference only. Filter life depends on operating conditions.
^ Suggested list price FOB Houston, Texas. Actual cost may vary. Subject to change without notice. Call for items not listed.
Warning: Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before and/or after the system.