Alpha Resources Activated CharcoalAlpha Resources activated charcoal is a gas-purification consumable for elemental and combustion analyzers, removing interfering species (moisture, CO₂, halogens, or other contaminants) from the carrier or reagent gas stream to protect the detector and maintain accurate, low-blank results. This aftermarket item is cross-referenced to ELTRA part 90291 and drops into the corresponding OEM workflow.Replace on the interval recommended for your instrument. Supplied by Alpha Resources as an aftermarket laboratory consumable.Specifications Alpha Part Number AR90291 Unit of Measure 50G Commodity / HS Code 3822.19.0000 OEM Cross-Reference OEM Brand OEM Part Number(s) ELTRA® 90291 OEM part numbers are provided for cross-reference convenience only and do not imply the product is of OEM origin. All trademarks are the property of their respective owners.DocumentsArchived Certificates of Analysis