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Thermo Scientific Barnstead Pretreatment and Scale Eliminator Cartridge for Hose Nipple

Part Number: D8921

List Price



-$37.00 (23.1%)  


Always Free!

Total Price   



Normally Ships in 3-5 Business Days


New, Factory Direct-Ship What's This?

Part Number  


Capacity (Grains)  


Capacity (Gallons)  


Resin Type  

Mixed-bed and Strong Cation Exchange, Activated Charcoal


Pretreats feed water to stills reducing maintenance. Contains resin to deionize water and carbon to remove volatile chlorine additives present in most municipal water supplies. Converts ionized salts to the acid form resulting in a product water that is low in pH, ideal for precious metal or isotope recovery. Color change indicates when the cartridge is beyond its useful life and must be replaced. Full size cartridge. Measures 18.7 x 3.25 in.

When to Replace

Replace when entire middle layer of resin changes in color from purple to light brown.

Compatible Water Systems

Barnstead Hose Nipple;


Instruction Sheet

D8901-D8921-D8902-D8904-D8905-D8922-D8951-D8903.pdf (Download PDF)


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