Watts 794102 4" 2nd Check Repair Kit 909 LDFRE

The Watts 794102 2nd Check Repair Kit serves 4" LDFRE 909 regulators by providing all needed components to fix the second check valve in the system. The repair kit enables proper backflow prevention to protect water supplies from contamination. The kit serves to restore the regulator's operational capability in HVAC and plumbing systems that include water heaters and boilers thus protecting both water quality and avoiding expensive water-related damage. The repair kit offers straightforward installation together with economical maintenance costs over complete replacement and dependable operational reliability.