VWR Black Rubber Stoppers One-Hole 13-M291 Pack

VWR Black Rubber Stoppers One-Hole 13-M291 Pack. Combining top-notch and uncompromising quality with an affordable price the VWR Black Rubber Stoppers One-Hole 13-M291/ 59581-549 can fulfill your laboratory needs while still offering a great value for the money. Product Category Description: This rubber stopper has a 1-hole for standard jars and flasks. It is made of natural rubber and is FDA compliant. Should a sharp turn be anticipated apply a drop of water or a suitable liquidizer to check th