WAH 23005 Drierite Indicating 8 Mesh 5 LB 1 EACH.

描述

W.A. Hammond - Indicating Drierite 8 Mesh 5 LB Indicating DRIERITE is impregnated with cobalt chloride. Indicating DRIERITE is blue when dry and changes to pink upon absorption of moisture. The color change is pronounced and clearly visible.