• Glass casing has zero absorption and porosity Dimensions, Dia. x L Color Cat. No. 7.9 mm (5/16“) x 32 mm (1 1/4”) White 58947-849 7.9 mm (5/16“) x 32 mm (1 1/4”) Red 58947-882 7.9 mm (5/16“) x 32 mm (1 1/4”) Yellow 58947-929 7.9 mm (5/16“) x 32 1/4