The EZ valve provides a built-in (NSF 61-certified) isolation valve for easy “under-pressure” installation in less than one hour (4- to 12-in. models). Larger sizes (14 to 24 in.) install in less than 4 hours. They meet AWWA C-509-09/C-515 and are less expensive than traditional shutdowns and work in heavily tuberculated pipe. The removable and reusable valve bonnet adapts to both valve insertions and line stops. There are more than 18,000 successful installations worldwide.