The GANCOWISE 5 Gallon Stainless Steel Commercial Beer Keg is ISO 9001 and NSF certified. It measures 24 inches tall and 8.5 inches in diameter. This stainless steel Ball Lock Keg is designed for home-brewing, install two MFL quick disconnect set into ball lock post, and then connect to the faucet and co2 system which allows you can quick carbonate and tap beverage.