McAlpine T16 1.5" x 1.25" trap inlet reducer is a plumbing fitting designed to reducer the size of a trap inlet connection from 1 1/2" to 1 1/4". With a 1 1/2" end fitting over the trap inlet and a 1 1/4" end connecting to the pipe, it guarantees a secure, leak-free joint. This reducer is commonly used in plumbing setups where a smaller pipe connection is needed.