The Graco 24U606 Inlet Air Valve Assembly regulates incoming air flow for proper operation of compatible pneumatic spray equipment. Designed as a replacement inlet air valve assembly, it fits compatible Graco sprayers and fluid handling systems to control the air supply entering the equipment. It works by opening and closing in response to system demands, helping maintain consistent a... https://www.wholetoolbox.com/graco-24u606-inlet-air-valve-assembly