The 32307910 high pressure ring set includes all three piston rings for the high pressure side of the 2475 piston compressor pump from Ingersoll Rand. Typically the rings are replaced when oil is getting downstream from the compressor pump or the air compressor is slow to build pressure.
If you are in need of rings for both the HP and LP side of the pump, you may want to consider the Ring and Gasket Kit for the 2475 compressor.
Fits the following pumps from Ingersoll Rand:
Part #: 32301426
Part #: 32307928
Part #: 2475-LOLS
Part #: 32170979
Part #: 2475
Part #: 32301517