Simplify your plumbing projects with the SharkBite brass crimp plug. Made from lead-free DZR brass, this brass crimp plug is corrosion free and is perfect for plugging the end of a PEX pipe with a copper crimp ring or stainless steel clamp. These brass crimp plugs are compatible with PEX and PE-RT pipes. SharkBite brass fittings feature a minimum working temperature of 33 degrees F at 160 PSI and a maximum working temperature of 200 degrees F at 80 PSI. These crimp plugs are certified for use in potable water and hydronic heating system applications.