The 3/4 in x 3/4 in x 1/2 in Brass PEX Crimp Tee is a reducing tee fitting designed to create a three-way branch connection in PEX plumbing systems. It allows 2 3/4-in PEX lines to continue straight while reducing to a 1/2-in branch line, making it ideal for controlled water distribution in residential and commercial installations.