Up for sale is one IR R1A-51 Spring and one 405-159 Throttle Valve Face that is a simple fix for that nagging persistent air leak from your impact wrench. Fits the IR 231, 231C, 244, 244A, 232TGSL. This will fit IR industrial 1/2” as well. A simple fix to get that older Ingy up and running! Usually ships in 24 hours! Shipped USPS First Class with tracking!