LabStrong Replacement for Barnstead D5021


The LabStrong D5021LS cartridge is comparable to the Thermo Scientific™ Barnstead™ D5021 cartridge. Side-by-side testing shows fantastic results for purity and longevity. The LabStrong water purification cartridge is used with the Thermo Scientific Barnstead E-Pure™ and NANOpure™ Quad Style water purification systems. 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.

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. The LabStrong GSX28LS O-Ring Canister Gasket, which is comparable to the Thermo Scientific Barnstead GSX28 O-Ring, is sold separately. 

Product Specifications:

  • Part Number: D5021LS
  • Comparable Thermo Scientific Barnstead Part Number: D5021
  • Product Type: Water Purification Cartridge
  • Compatible With: Thermo Scientific Barnstead E-Pure and NANOpure Quad Style Water Purification Systems
  • Grain Capacity: 664 grains
  • Max Inlet Water Pressure: 30 PSI
  • Max Flow Rate: Up to 2 liters per minute
  • Physical Dimensions (Diameter x Length): 3.38 x 17 inches
  • Resin Color Change Indication: No
  • Flow Type: Down
  • Shelf Life: 2 years
  • Temperature Range: 40 to 120 degrees Fahrenheit (Warning: Do Not Allow Cartridge to Freeze)
  • Resin: Combination of Carbon and Mixed-Bed Ion Exchange
  • Type: Organic Free Organic Removal
  • Characteristics: Combination of carbon and ultrapure mixed-bed resin. Used after deionization and colloid pretreatment, can provide water with <10ppb of TOC.
  • Materials: All virgin materials in product (no recycled media or containers)


Made in USA with Global Materials - 


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


LabStrong Cartridge Recycling Program Information and Return Instructions
How to Recycle LabStrong Water Purification Cartridges