SHARKBITE BRASS CRIMP REDUCING TEE: This SharkBite brass crimp reducing tee is used to connect pieces of different-sized PEX pipes together using copper crimp rings or stainless steel clamps COMPATIBILITY: Brass crimp reducing tees work well with PEX and PE-RT pipes DURABLE AND HIGH QUALITY: These crimp reducing tees are made from lead-free DZR brass for long-lasting reliability; corrosion free and with no scale build-up PREFERRED BY THE PRO: SharkBite tools and fittings meet the same high standards for commercial and residential plumbing applications, combining durability and ease of use; certified for use in potable water and hydronic heating system applications SPECS: 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