LabStrong Replacement for Barnstead D400377

Special Price!


The LabStrong D400377LS Mega-Pure™ High Purity Cartridge is comparable to the Thermo Scientific™ Barnstead™ D400377 Mega-Pure High Purity Cartridge. Side-by-side testing shows fantastic results for purity and longevity. The replacement cartridge is suitable for operation in the Mega-Pure Single (D1) or Dual (D2) Cartridge Deionizer Systems and the MP-12A Glass Stills. The cartridge enhances the performance of Mega-Pure Glass Stills by reducing scale build up and increasing distillate purity. 

The cartridge is composed of mixed-bed ion exchange resin. The cartridge is designed to produce high purity deionized water to pretreat the Mega-Pure Still. The water purification cartridge provides outstanding quality you expect from your water system at a low cost. The cartridge is an economical alternative for all laboratories and is ideal for small volume applications.

LabStrong takes extra care in sealing our water purification cartridges to ensure exceptional quality is maintained throughout the two year shelf life. This cartridge is sealed in a military specification vapor barrier foil Mylar bag, which dramatically inhibits drying out of the resin. 

Product Specifications:

  • Part Number: D400377LS
  • Comparable Thermo Scientific Barnstead Part Number: D400377
  • Product Type: Water Purification Cartridge (High Purity)
  • Compatible With: Thermo Scientific Barnstead Mega-Pure Single (D1) (Model Number A440046) or Dual (D2) (Model Number A444066) Cartridge Deionizer Systems and the MP-12A Glass Stills (Model Numbers A442011 and A442012)
  • Grain Capacity: 1,191 grains
  • Max Inlet Water Pressure: 5 to 100 PSI
  • Max Flow Rate: Up to 2 liters per minute
  • Physical Dimensions (Diameter x Length): 4 x 16 inches
  • Resin Color Change Indication: No
  • Flow Type: Up
  • Shelf Life: 2 years
  • Temperature Range: 40 to 100 degrees Fahrenheit (Warning: Do Not Allow Cartridge to Freeze)
  • Resin: Mixed-Bed Ion Exchange
  • Type: High Purity (Mega-Pure)
  • Characteristics: Designed to pretreat feedwater to Mega-Pure Stills. 
  • Materials: All virgin materials in product (no recycled media or containers)


Made in USA with Global Materials - 


*Barnstead, Thermo Scientific and Mega-Pure are trademarks of Thermo Fisher Scientific. LabStrong cartridge products are not affiliated with, nor supplied or sponsored by Thermo Fisher Scientific.


LabStrong Replacement for Barnstead D400377 Cartridge Installation Instructions
LabStrong Cartridge Recycling Program Information and Return Instructions
How to Replace LabStrong Cartridges and Gaskets in a Thermo Scientific Barnstead Mega-Pure D2 DI Water System
How to Recycle LabStrong Water Purification Cartridges