Four Seasons 635 - Red Orifice Tube (10 Pack)

Red orifice tube 10 pkg contains necessary o-rings and gaskets necessary to seal high pressure from low pressure. application specific direct fit replacement for ease of installationhigh quality components for long lasting performanceinjection molded color coded plastic for easy identificationorifice tubes are built application specific per oem size and color. since they act as a refrigerant filter they can become clogged with debris requiring the orifice tube to always be replaced.orifice tubes serve as the divide between the high and low pressure sections of the a/c system. an orifice tube is a very simple component with no moving parts letting refrigerant flows through its fixed diameter tube.application summary:ford aerostar (89-86); bronco (96-87); bronco ii (90-87); e series fullsize van (01-92); e series medium duty van (00); excursion (05-00); expedition (02-97); explorer / sport / sport trac (10-91); f series fullsize pickup (09-87); f series