39155346 is an OEM Ingersoll Rand TEE that. This fitting has two connections for 1/4" poly line and a separate threaded port on the side. 39155346 was most commonly used on the Ingersoll Rand UP6 20-30 range. The NPT section would thread into the bottom of the pressure switch. One tubing line would route up to the pressure gauge. The second tubing line routs down to the separator manifold block.
39155346 is an OEM part from Ingersoll Rand. Please contact us with your serial number for confirmation this will work with your air compressor.
Part #: 47501875001
Part #: 88171913
Part #: 24121212
Part #: 23675010
Part #: 23935059
Part #: 22505309