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HN (3/8’’) Dyed Pretreatment (Mixed-Bed/Carbon)


LabStrong™ D8921LS, hose nipple, dyed mixed-bed/carbon cartridge is comparable to the Barnstead™ D8921. Typically in-stock and ready to ship.


The LabStrong™ D8921LS hose nipple cartridge is comparable to the Thermo Fisher Scientific™ Barnstead™ D8921 cartridge. Side-by-side testing shows fantastic results for purity and longevity. The HN Dyed Pretreatment (Mixed-Bed/Carbon) Deionization Cartridge is used with hose nipple, non-pressure applications.

The cartridge includes a 3/8 inch hose barbed connection on each end. The cartridge life capacity is indicated by resin color change. The resin color will change from dark brown or purple to light brown, which indicates that the cartridge is exhausted. 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 multiple ways, ensuring exceptional quality is maintained throughout the two year shelf life. Each cartridge has fitted sealing plugs/caps placed on both ends and then it is further sealed in a bag – the combination of which dramatically inhibits drying out of the resin.

Need additional assistance to replace the cartridge? Contact our Technical Service Team:

Phone: 563-588-8900

Helpful videos can also be found on our YouTube Channel and custom playlists –

– Made in USA with Global Materials –

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

Additional information

Weight 5 lbs
Dimensions 20 × 4 × 4 in
Water Purification Process

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Resistivity Megohm

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Sole Source

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Special Storage Required

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