Intercooler Safety Valve
Coleman, Sanborn Pumps & Parts

Price: $14.63
Found under the following brands:
Chicago Pneumatic, US General, Belaire, Kobalt, NAPA, IMC-ATLAS COPCO
1/4", metric
Chicago Pneumatic, US General, Belaire, Kobalt, NAPA, IMC-ATLAS COPCO
1/4", metric