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HRO4 Commercial Membrane System
  • C21 or C23 Switch Controller with Feed Flush

  • Extra Low Energy Membrane Elements

  • Fiberglass Membrane Housings

  • 4.5" x 20" Single O-Ring Pre-Filter Housing

  • 5 Micron Sediment Pre-Filter

  • Multistage Stainless Stell Centrifugal Pump

  • Motor Thermal Overload Protection

  • Pump Operating Pressure Gauge

  • Pre-Filter in Pressure Gauge

  • Pre-Filter out Pressure Gauge

  • Permeate Flow Meter

  • Concentrate Flow Meter

  • Concentrate Recyle Flow Meter

  • Feed Low Pressure Switch

  • ASCO Solenoid Valve

  • Stainless Steel Concentrate Valve

  • Stainless Steel Reycle Valve

  • Chemical Injection Port and Plug

  • Rubber Bumper Kit

  • C23 Controller (500 GPD and 1000 GPD)

  • Membrane Expansion Kit (6000 GPD to 8000 GPD)

  • Casters

  • Levelers

  • TDS Meter

Commercial HRO4 Membrane Systems


Hellenbrand's HRO4-Series Membrane Systems are state-of-the-art, versitile systems for treating municipal and brackish water supplies and with flow rates ranging from 500-8,000 gallons per day. Minimal energy consumption, low maintenance and operation costs make the HRO 4-Series reverse osmosis systems the right choice. 


Big on features but not on space, HRO 4-Series Systems feature a robust, innovative design that allows for versatility in the event of feed water quality and temerature variations. A C21 or C23 controller with feed flush comes standard to reliably operate the system. HF4-Series Extra Low Energy membranes are standard on all systems and offer high rejection and flow rates for quality system performance. Systems also feature a heavy duty 1/2 HP stainless steel multistage booster pump for superior perfromance and corrosion resistance.

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