Pentair Everpure Conserv® 75E RO Reverse Osmosis System (EV9977-00)

Pentair Everpure Conserv® 75S High Efficiency Reverse Osmosis System, designed for combi:ovens and small steamers, combines true corrosion and scale protection in one solution. This compact system combines a carbon filter, scale inhibitor, calcite feeder, carbon post filter and blending to create the right balance of minerals to prevent both corrosion and scale formation, differentiating itself from conventional RO systems. It is a reliable, simple to install and easy to operate solution that helps end users meet equipment manufacturer’s water specification requirements, reduces warranty claims, increases equipment life and customer satisfaction.


  • Combi Ovens
  • Small Steamers
  • Proofers
  • Low Volume Applications up to 50 GPD (189 LPD)


  • Process Type: Commercial Reverse Osmosis System
  • Application: Coffee brewers and espresso, steam: boiler and boiler less, and ice equipment
  • Flow Rate Daily Production Rate: 50.5 gallon per day (191.1 liters per day)
  • Filter Capacity: Should be replaced every 12 months
  • Contaminant Removal: Chlorine taste & odor, scale, and Total Dissolved Solids (TDS)
  • Ideal for Specialty Coffee Shops 


Up to 50% water savings over conventional RO systems

  • Improves equipment life and performance by removing 95%+ of all dissolved solids that cause corrosion and scale buildup
  • Especially useful on direct injection combi ovens producing less than three (3) gallons per hour (gph)
  • Heating surfaces maintain peak heat transfer efficiency, reducing cycle times and energy consumption
  • Protects against taste: and odor causing contaminants while removing dirt, particulates and dissolved minerals
  • Less frequent deliming of equipment means reduced maintenance and service costs
  • Compact design allows for wall mount, countertop or undercounter installation
  • Sanitary cartridge replacement is simple, quick and clean; internal filter parts are never exposed to handling or contamination
  • NSF/ANSI Standard 58 certified to reduce cysts such as Cryptosporidium and Giardia by mechanical means*
  • Proprietary Fibredyne™ II filtration media effectively inhibits the growth of bacteria on the filter media that can decrease product life*

*See individual system specification sheets for performance claims and FIFRA registration information


  • Chlorine taste & odor reduction
  • Hardness reduction
  • Reverse osmosis
  • Scale reduction
  • TDS reduction
  • High efficiency reverse osmosis system for espresso and combination applications, such as espresso and ice makers
  • Blending valve adjusts right balance of minerals for optimal scale and corrosion inhibition resulting in extended equipment life, reduced downtime due to costly maintenance and repair
  • Up to 50% water savings over conventional RO systems
  • Sanitary cartridge replacement is simple, quick and clean; internal filter parts are never exposed to handling or contamination

Pentair Everpure Conserv® 75E RO is ideal for:

  • Espresso Machine
  • Coffee Machine
Service Flow Rate 0.5 gpm @ 50 – 85 psi (1.9 L @ 3.4 – 5.8 bar)
Overall Dimensions 18.69″ H x 16.97″ W x 10.37″ D
Inlet / Outlet Connection 3/8″ OD John Guest® fitting
Wastewater Line Connection 1/4″ OD John Guest fitting
Operating Pressure Requirements 40:85 psi (2.7 – 5.8 bar) non:shock
Maximum Operating Pressure 125 PSI (8.6 bar)
Inlet Temperature 32:100°F (0 – 37.7°C)
Inlet TDS 1,000 ppm maximum
Operating Weight 53 lbs (24.04 kgs) 16.97″ (431.1 cm) 18.69″ (474.7 cm) 10.37″ (263.4 cm)
Wastewater Production 14 – 20 gpd @ 60 psig, 77°F (53 – 75 Lpd @ 414 kPa, 25°C)
Wastewater Drain Line Capacity 0.05 gpm (200 ml/m) to open atmosphere
Storage Tank Capacity 2 gallon tank; effective/usable capacity 1 gallon (3.8 L)
Electrical 100:240VAC/50:60Hz switchable power supply



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