The EZ valve provides a built-in isolation valve for easy “under-pressure” installation in less than one hour (4- to 12-in. models). Larger sizes (16 to 24 in.) install in less than four hours. The product meets AWWA C-509-09, is less expensive than traditional shutdowns and even works in heavily tuberculated pipes. The removable and reusable valve bonnet adapts to both valve insertions and line stops.