Resistivity: 18 megohm-cm (@25° C)
Conductivity: 0.056 micromhos/cm (@25° C)
TOC: <35 ppb
Bacteria: 10 CFU/mL (<0.1 CFU/mL with capsule postfilter)
Sodium: <1 ppb
Hardness: 0 ppb
pH: 6.8 - 7.0
Flow Rate: 0.5 gpm (1.9 Lpm)
(feed water quality may vary results)


  • 10" Polypropylene Filter Housing
  • 10" x 0.2 Micron Filter Cartridge (other micron sizes available)
  • 6" x 18" Activated Carbon Adsorber (.28 ft³)
  • Highly Activated Bituminous Grade Carbon Media
  • 6" x 18" Primary and Polishing Mixed-Bed Deionizers (.28 ft³/ea)
  • Service Indicator Light
  • Type I Strong Base Anion and Strong Acid Cation Resins
  • Polyethylene Interconnecting Tubing
  • Picotap® Faucet


The Picosystem® is Hydro’s basic point-of-use (POU) water purification system that produces ASTM and CAP Type 1 Reagent Grade Water for basic analytical laboratory applications. The Picosystem® is also the chassis for eight additional POU systems that produce varying higher qualities for more critical applications. The system components include one organic adsorber containing highly activated carbon media for chlorine/chloramine removal and TOC reduction, one primary and one polishing mixed-bed deionizer containing pharma-grade cation/anion resins, a service indicator light and polyethylene interconnecting tubing. Hydro manufactures a selection of Picotap® faucets made of UHMW virgin polypropylene and polyethylene to complement the Picosystem’s® quality.