The ½” Total Repair Kit is a complete replacement solution for restoring the internal components of the ½” Zurn 975XL reduced pressure principle backflow preventer. Designed for full system rebuilds, this genuine OEM kit includes check valve poppets, springs, seats, O-rings, relief valve components, and lubricant - everything needed to return a backflow preventer to optimal working condition. Durable and easy to install, it ensures compliance with industry backflow prevention standards and helps maintain safe, uncontaminated potable water.