10PK Neoprene Stoppers, Solid - ASTM - Size: #15 - 83mm Bottom, 103mm Top, 39mm Length
Pack of ten #15 stoppers made of solid, long lasting neoprene rubber. Blue color. Manufactured according to sizes recommended by ASTM standards. Each stopper measures 39mm in length, has a base diameter measuring 83mm, and a top diameter measuring 103mm. 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.