Review on Joyway Inflator Valve Connector Stainless by Mark Gilbert

I have a 2hp compressor with an integrated hose that is marked '1/4 ID'. The 1/4" was too small and the 5/16" was also too small, but I was able to pull the live 1# out of the yoke and get a seal. " is slightly larger than the ID and the notches in between are the same as the ID. This is a quality product and customer service is timely. Look for a size larger than this 5/16" if your hose ID 1/ is 4" for a snug fit.