Brand new Rolair Oil Sight Glass. This 'bubble' style sight glass is an OEM replacement part for Rolair air compressors. This is a high quality plastic sight glass that comes with a gasket. There is a red circle mark on the center of the glass to show you your oil level, and it is very easy to read.

OEM Part Number: 36500140CH

Sight glass has 1/2" Male NPT threads and will work with any compressor that has a 1/2" oil sight glass port.