Knox Box FDC Lock 3" Male NH/NST Locking Cap Storz Size_4" Rigid Storz This plug will fit into

This plug will fit into a female with an inside diameter of approx

efficiently and easily

This cap features a 9 inch chain for a secure connection to the wall or equipment

Golf Course Greens and Tees Watering

Knox Box FDC Lock 3" Male NH/NST Locking Cap Storz Size_4" Rigid Storz This plug will fit intoKnox FDC Locks protect fire department connections (FDCs), keeping pipes clean of debris to ensure the delivery of high pressure water flow to fire sprinkler systems. The Knox FDC Lock is available in 2 1 2" configuration and is operated with a Knox FDC wrench controlled by the Fire Department. Ensures ready and reliable connections to fire sprinkler systems Protects check valves from freezing in cold climate areas Eliminates costly services to back