HydroPure Deionized Pure Water System

The Philadelphia Scientific double deionized pure water system, the HydroPure PS-400, has all of the benefits of the single PS-300 deionized water system, with the added benefit of 2 cartridges. Producing up to 10,000 litres of deionized water from the 2 cartridges! (see deionized water purity table below).

When one Deionizer cartridge becomes exhausted and needs to be replaced simply move selector valve to choose the other cartridge.

Each replacement HydroPure deionized water cartridge will produce on average 2400 litres of deionized water. The inbuilt battery powered PS-160 purity light will let you know when it is time to change over cartridges.

The purity light will turn from green to red when the output quality of the water exceeds 50ppm.


  • Input/Operating Pressure: <80 psi (<5.52 bar)
  • FlowRate: 0.5 gpm with provided restrictor (1.89 lpm)
  • System Exposure Temperature: 35° to 160°F (2° to 71°C)
  • Power Source: For purity light (PS-160DC): 2 D-Cell Batteries (included); Battery life estimate: 2 Years
  • Purity Light Setting: 50 ppm total dissolved solids light turns red
  • Input Hose Size: 3/8 in (1.3 cm)
  • Input Hose Length: 10 ft (3.0 m)
  • Output Hose Size: 3/8 in (1.3 cm)
  • Output Hose Length: 20 ft (6.0 m)
  • Weight: 27 lb (12.2 kg)
  • Product Height: 44 in (111.7 cm)
  • Product Length: 7 in (17.8 cm)
  • Product Width: 6 in (15.2 cm)
  • Capacity: 600 gallons/2400 litres based on incoming water quality (each cartridge)

Purity Table

table showing the deionizer cartridge purity output
Deionizer purity table

Purity Light Indicator

The purity light will turn from green to red when the output quality of the water exceeds 50ppm.

graphic showing the function of the purity light
HydroPure deionizer purity light

Additional information

Weight12.5 kg
Dimensions115 × 16 × 18 cm

1 review for Deionized Pure Water System – Double PS-400

  1. Rated 5 out of 5
    ( 1 review )


    Fantastic service, starting from the advice given to delivery! End product is exactly what I needed, the ps-400 is a great bit of kit.

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