VWR® Two-Hole Rubber Stoppers, Black Size 15

VWR® Two-Hole Rubber Stoppers, Black Size 15

Bottom Diameter 83 mm Top Diameter 103 mm Lentgh 39 mm

These black, high percentage rubber stoppers are low in free sulfur and have two holes to facilitate laboratory procedures.

Stoppers remain resilient and pliable under most laboratory conditions
Low free sulfur

Stoppers sized as 00 have 3mm diameter holes; the size 1 stopper has 4mm holes. Stoppers sized as 2 and larger have 5mm diameter holes.