10PK Neoprene Stoppers, 1 Hole - ASTM - Size: #14 - 75mm Bottom, 90mm Top, 39mm Length

Pack of ten #14 stoppers made of long lasting neoprene rubber. Blue color. Each stopper features one hole measuring 5mm in diameter. Manufactured according to sizes recommended by ASTM standards. Each stopper measures 39mm in length, has a base diameter measuring 75mm, and a top diameter measuring 90mm. The neoprene rubber construction is suitable for use with petroleum products, minerals, oils and fats, as well as most inorganic acids and bases. Resistant to temperatures ranging from -40 to 130°C.