CapitolBrand® Solid Green Neoprene Stoppers
Synthetic green neoprene stoppers are solid throughout the core for a secure seal to laboratory vessels, HVAC tubing and other O.D. which need to be sealed. These stoppers are the same physical dimensions as our black rubber stoppers, but can be used in areas where rubber would be attacked by reagents or solvents. Synthetic neoprene stoppers contain no free sulfur and exhibit good resiliency and shelf-life. Withstands petroleum products and oils as well as most inorganic acids and bases. Stoppers are green for easy identification. Dimensions are in accordance with NBS specifications.