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Aquatec ERP-500 Permeate Pump for up to 75 GPD

Part Number: ERP500-JG
Alt. Part Number: ERP500-JG, PAM500
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The Aquatec ERP-500 Permeate Pump will bring storage tanks up to line pressure, then shut the system down when the tank reaches capacity, removing the need for a hydraulic shut-off valve. Permeate pumps also deliver faster RO water production, higher delivery pressures, superior water quality, and extended filter/membrane capacity.

  • No electricity required. The Aquatec ERP-500 is powered by hydraulic energy from the brine water that is usually lost to the drain.
  • No loud clicking or gurgling sounds. This pump is specifically designed for residential applications where noise is a key concern. The ERP-500 includes a specially designed insert . The Permeate Pump pushes more purified water into the storage tank, reducing membrane back pressure, therefore maximizing available product tank pressure (up to 95% of feed pressure).
  • Improved efficiency. This pump dramatically improves the membrane's production, reducing waste-water by 80% or more. Basically, if an R.O. system requires 10 gallons of tap water to produce 1 gallon of pure water (10:1), the Permeate Pump should reduce this ratio below 3:1. It also decreases product tank “fill time" by up to 65%.
Additional Features:
  • Improves membrane life, prevents “TDS creep"
  • For all membranes rated 24 - 75 GPD
  • Effective for inlet water pressures as low as 30 PSI
  • Compact size for easy installation
Up-gradable and configurable:
Utilize the ASV-ERP Automatic Shut Off Valve in low water pressure areas (generally less than 40 psi static water pressure) for the purpose of enhancing the performance of the permeate pump system. If your water pressure is 30 psi or less, utilize the 6800 RO booster pump.
The optional Installation Kit includes (2) 1/4" stem elbows, (2) self-tapping mounting screws and 4' of 1/4" OD LLDPE tubing.
The ERP-500 can easily be retrofitted to upgrade existing R.O. systems. All pump options listed include a mounting bracket.

Compatible with:
3M Water FiltrationCuno 89-1331202 for the SGLP RO System
California residents Prop 65 Warning
This product contains materials known to the State of California to cause cancer and birth defects or other reproductive harm. www.p65warnings.ca.gov