Includes 48" Blue hose and SnapFast coupler. For use with ranges, fryers, convection ovens, griddles etc. 3/4" inside diameter. The heart of the Safety System is the Dormont Blue Hose, specifically engineered for castor-mounted commercial cooking equipment. The Blue Hose includes an anti-microbial protective pvc coating, and patented stress guard technology which makes the hose easier to install and dramatically reduces stress on the hose at it's most vulnerable points. SnapFast is the only one-handed quick disconnect (QD) design-certified by CSA for commercial gas cooking equipment. This makes your equipment easier and less expensive to service and move for cleaning purposes by avoiding awkward maneuvering in tight spaces.