This lot of 5 Milton Industries 1803 couplers is perfect for any automotive air tool needs. These steel couplers have a 3/8" female NPT connection and a P-style design, allowing for easy and secure connections. With a 68 CFPM flow rate and an unspecified length warranty, they are a reliable and durable choice for any car enthusiast or mechanic. The manufacturer part number is 1803 and the country/region of manufacture is unknown. Add these couplers to your collection today! They are new in great working condition old stock