Knox Box FDC Lock 1 1/2" Male NH/NST Locking Cap Model:3190 (9.0 TPI x 1.990 OD) and petroleum products

and petroleum products

High pressure type "B" aluminum 2 1/2 inch female camlock (Cam & Groove) coupler to 2 1/2 inch male NH threads

Aluminum Female to Female Adapter

Should also be used when flushing hydrants or other water systems to protect the inner liner of the discharge hose from water pressure or debris damage

5 Stainless Steel Set screws

Knox Box FDC Lock 1 1/2" Male NH/NST Locking Cap Model:3190 (9.0 TPI x 1.990 OD) and petroleum productsKnox 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 1 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