Quatro NC-APC Fume Hood Filter Refill Material

Provides For Approximately 3.5 Refills For The 3rd Stage Of NC-APC Filter Used In The Quatro Burnout Fume Hood DFH1000-B, Otto Frei part number 147.624.  This is a specially formulated charcoal based product used to filter fumes associated with the burnout of wax products commonly found in jewelers injection wax.