10PK Neoprene Stoppers, 1 Hole - ASTM - Size: #16 - 90mm Bottom, 127mm Top, 50mm Length

Pack of ten #16 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 50mm in length, has a base diameter measuring 90mm, and a top diameter measuring 127mm. 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.