Versatile neoprene stoppers perfect for every laboratory.

• Solid, one hole or two hole stoppers are available
• Manufacturered according to sizes recommended by ASTM standards

Manufactured from long lasting neoprene rubbers. Suitable for use with petroleum products, mineral oils, fats as well as most inorganic acids and bases. Neoprene rubber is oil resistant and suitable for temperatures up to 120 °C (250 °F).