10PK Neoprene Stoppers, Solid - ASTM - Size: #13.5 62mm Bottom, 75mm Top, 35mm Length

Pack of ten #13.5 stoppers made of solid, long lasting neoprene rubber. Blue color. Manufactured according to sizes recommended by ASTM standards. Each stopper measures 35mm in length, has a base diameter measuring 62mm, and a top diameter measuring 75mm. 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.