Vacuum Plate, High quality for years of classroom use, Each

Details:

Made of steel with rubber gasket, this vacuum plate is large enough to accommodate bell jars up to 9 in. (22.5cm) in diameter.Nickel-plated, 0.5 in. (1.25cm) steel plate provides extra strength and is ground flat for a good sealComplete with a barbed hose connection, vacuum release valve and rubber gasket to provide a tight seal