WH201P / 501P / 201C / 501C

Three-Stage Type 2 & 3 Lab Water Purification System


A pre-assembled cartridge system that provides deionized water using a staged filtration process. Water purification is provided using a three-stage process.


  • High purity models: WH201P and WH501P: use low odor mixed bed cartridges for applications requiring better than 10 MΩ water quality

    General deionization, battery water filling, humidification, hydrogen generator, glassware rinse, glassware washer, sterilizers

  • High capacity models WH201C and WH501C: provide water quality better than 50 kΩ, for less corrosive applications, ideal for scale reduction and non-stainless steel piping systems Environmental chambers, sterilizers, ultrasonic cleaners, chiller loops

3 Stage Process

  • Stage 1

    Removes particles greater than 5 micron, chlorine, and organics

  • Stages 2 & 3
    Deionizers designed to remove dissolved minerals


  • Turn-key system for low cost – on demand service

  • Resistivity light included for visual indication of cartridge replacement

  • Available in high purity and high capacity configurations

  • Available in 2-1/2″ and 4/1/2″ diameter configurations

  • Outlet isolation valve, spanner wrench and associated tubing provided

  • Economically produces DI water

Stop wasting half your ultrapure water budget.

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  Cartridge Replacement Kits

  Replacement Resistivity Lights

Type 2 & 3 Three-Stage Lab Water Purification System
Technical Specs

Distilled water capacity in gallons
Total Dissolved Solids (TDS as CaCO₃)
High Purity DI Water
Better than 10 Megohm
High Capacity DI Water
Better than 50 Kohm
10 ppm*2650680030008000
100 ppm265680300800
300 ppm90225100265
500 ppm5013560160
Filter technology(1) 10” Carbon Block
(2) 20” High Purity
(1) 10” Carbon GAC
(2) 20” High Purity
(1) 10” Carbon Block
(2) 20” High Capacity
(1) 10” Carbon GAC
(2) 20” High Capacity
Bowl diameter2.5”4.5”2.5”4.5”
Resistivity light200 KΩ20 KΩ
Flow rate0.5 gpm / 1.9 lpm1.25 gpm / 4.7 lpm0.5 gpm / 1.9 lpm1.25 gpm / 4.7 lpm
Total capacity grains as CaCO₃
Typical effluent10 MΩ-cm50 MΩ-cm
ConnectionInlet - 3/8" O.D. tubing
Outlet - 1/2' hose barb
Pressure10 PSIG minimum
100 PSIG maximum
Temperature (max)100˚F / 30˚C
Filter housingPolypropylene
BracketPainted steel
Dimensions (H x W x D)24”x 20”x 626”x 36”x 924”x 20”x 626”x 36”x 9
Shipping weight24 lbs.55 lbs.24 lbs.55 lbs.


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