Economical, lab-grade water system easily customized for all pretreatment or deionization needs.

Product Selection

Model Holder Pore Size Filter
D4505 Half Size N/A System
D4511 Single N/A System
D4521 Double 120V System with digital purity meter
D4522-33 Double 240V System with digital purity meter
D4524 Double 120V System with Pura-Lite indicator (50 kO)
D5831 Double 120V System with Pura-Lite indicator (200 kO)
D5833 Double 120V System with Pura-Lite indicator (1 MO)


  • Customize the economical Thermo Scientific B-Pure Laboratory-Grade Water System to meet your pretreatment or deionization application needs.
  • The modular design provides the ability to add additional holders when the need arises.
  • Choose from single, double or half-size holders.
  • Easily change cartridges with the simple quarter turn quick release canisters.


  • Produces up to 4L/min., depending on model.
  • Quarter-turn quick-release canisters make cartridge changes easy.
  • Accepts Thermo Scientific Pura-Lite indicator or digital purity meter to monitor water quality.

Single Module:

  • Simple system without draw-off valve or purity indicator.
  • Produces up to 4L/min.

Double Module:

  • Complete with draw-off valve.
  • Produces up to 4L/min.
  • Choose from models with digital purity meter or Pura-Lite “Go/No Go” resistivity indicator.

Half-Size Holder:

  • Produces up to 2L/min.
  • Easily attaches to full-size B-Pure systems.
  • Small size for flexibility in mounting location.


  • Cartridges (sold separately).

Recommended for:

  • Pretreatment, deionization.


  • The Thermo Scientific H2O Select Program is available to help select the correct B-Pure system.
  • For details, contact our Customer Service Representative.


Thermo Scientific B-Pure Water Purification Systems Product Brochure