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Cartridges and Filter Systems

Barnstead B-Pure Water Purification System

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

Barnstead 1/2 Size B-Pure Filters and Holder

Pre-treat your feed water with Thermo Scientific™ Barnstead™ 1/2 Size B-Pure™ Filters. In addition to pre-treating feed water, the filters can act as a final filter to ensure consistently pure water. Compatible with B-Pure 1/2 size filter holders, these filters are available in varying pore sizes to meet all of your pre-filtration needs.

Produce up to 2L/min of laboratory-grade water the with economical Thermo Scientific™ Barnstead™ 1/2 Size B-Pure™ Filter Holder. Use these filter holders with Barnstead™ B-Pure™ 1/2 size filters to pre-treat feed water or for a final filter to help ensure consistently pure water.

Barnstead Harvey DI+ Cartridge System

Remove calcium, magnesium and other ionic impurities that can harm steam sterilizers with the Thermo Scientific™ Harvey™ DI+ Cartridge System. This turn-key system ships complete with a remote dispenser, Pura-Lite indicator and a high capacity, two-bed ion exchange cartridge. It is quick to set up, easy to use and requires only simple maintenance. Easily install the system with wall mount and eliminate the need to store containers of distilled water. The system accepts a broad range of other cartridges to remove impurities and produces pure water at a flow rater of 4L/min.

  • Light indicator notifies user when it is time to replace the cartridge.
  • Nuclear-grade resin is enclosed in a virgin polypropylene canister to purify tap water.
  • Simple maintenance: quarter-turn quick-release canister is easy to replace.
  • Pura-lite notifies when it is time for a new cartridge.

Barnstead Bantam Deionizer

Customize the Thermo Scientific™ Bantam™ Deionizer to your specific application by selecting the appropriate cartridge. An ideal choice for an economical way to deionize water, this deionizer allows you to easily view resistivity directly from the unit.

  • Ideal for applications requiring up to 38L/hr. of purified water
  • Point-of-use polishing of pretreated water or single-stage treatment of tap water
  • Direct-reading purity monitor
  • Mounts on benchtop or wall


  • 3′ (91cm) inlet tubing

Barnstead Hose Nipple Cartridge Holder

Easily mount the Thermo Scientific™ Barnstead™ Hose Nipple Cartridge Holder and use with Barnstead Hose Nipple Cartridges for an economical and customizable water purification system. An ideal purification option for small volume applications, the compatible cartridges are available in 1/2 size, 2/3 size and full size.

Barnstead Pretreatment Cartridges and Filters

Use Thermo Scientific™ Pretreatment Cartridges and Filters when the quality of your feed water doesn't match the requirements for your Thermo Scientific™ Barnstead™ water purification system.


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