Thermo Scientific Barnstead D4521 Double-Holder System, 120 VAC

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Thermo Scientific Barnstead Mfr # D4521 – Item # EW-99253-10
Modular design - fill with your choice of cartridges
  • Perfect for general pretreatment of laboratory water


$2,620.00USD / Each


Specifications & Description

  • ASTM Water GradePretreatment
  • Max Flow Rate (L/min)4
  • Max Flow Rate (L/hour)240
  • Max Flow Rate (GPH)52.8
  • Number of Holders2
  • Inlet Port1/2" NPT(F)
  • Feed Water Requirements (pressure)100
  • Feed Water Requirements (Temperature)0-49⁰C
  • Max Inlet Water Temperature (° F)120
  • Min Inlet Water Temperature (° F)40
  • Max Inlet Water Temperature (° C)49
  • Min Inlet Water Temperature (° C)4
  • Min Inlet Pressure (PSI)5
  • Max Inlet Pressure (PSI)100
  • Min Inlet Pressure (bar)0.3
  • Max Inlet Pressure (bar)6.9
  • Power (VAC)120
  • Height (in)27
  • Depth (in)7
  • Width (in)15
  • Height (cm)86.6
  • Depth (cm)17.9
  • Width (cm)38.1
  • DescriptionDouble-Holder System, 120 VAC

Key Features

  • Perfect for general pretreatment of laboratory water

More About this Item

B-PURE™ systems are modular wall-mountable systems for point-of-use deionization. Simply add modules as needed when your water requirements change. All systems accept pre- and posttreatment cartridges. Use pretreatment cartridges to filter water before reverse osmosis, deionization, or distillation. Use posttreatment cartridges at the point of use for filtration of ultrapure water. Easily install and remove cartridges; a quarter twist releases canister. A PURA®-Lite resistivity indicator can be mounted directly to the housing to monitor water purity threshold—order separately.

Double-Holder system accepts disposable cartridges (required) sold separately. System includes a digital resistivity meter for accurate monitoring of water purity and a spigot for easy dispensing.



Do you have questions about this product?

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3 Questions | 3 Answers
Displaying questions 1-3
  • Q:

    Where is the link to compatible cartridges?
    Asked on 1/4/2017 by Laura

    1 answer



      Compatible cartridges can be found by clicking on the "View Virtual Catalog - English" link.

      Answered on 1/6/2017 by Polo from Technical Support
  • Q:

    Where is the link to compatible cartridges?
    Asked on 1/4/2017 by Laura

    1 answer

  • Q:

    How often do you replace the filters.Using 20 gallons a week.
    Asked on 11/26/2012 by JIM from MD

    1 answer



      Replacement frequency is not so much dependent upon the amount of water passing through, but rather the quality of the water passing through and the cartridges being used. If there is a lot of material to remove from the feed water - cartridges will spend more quickly.
      Please call or email us for additional assistance. We have have information on the quality of your water already on file and can compare it based on the cartridges you choose as well.

      Answered on 11/28/2012 by Jen from Technical Support
Displaying questions 1-3

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