The Ingersoll Rand 48778716 OEM reduction outlet tee is a reducing tee that is used to reduce the pipe size from 40mm 1.5” pipe to 25mm 1" piping. Two sides of the tee are for 40mm 1.5” piping and the drop portion is for 25mm 1” pipe. This is often used when the main header pipe is 1.5” to help with pressure distribution while reducing to 1” on the pipe drops.
Simplair piping has a maximum working pressure of 220psi. These are push fit style connections using nickel plated brass fittings and a high nitrile seal with stainless steel bite ring.