Knox Box FDC Lock 2 1/2" NH/NST Male Locking Cap Hose Size (ID)_1 3/4" Hoses Type "DP" brass 1 1/4

Type "DP" brass 1 1/4 inch male camlock (Cam & Groove) dust plug

These gaskets are specifically for 1 1/2 inch NH A15DR60

Type "AA" spool stainless steel 4 inch male camlock (Cam & Groove) coupler to 4 male camlock (Cam & Groove)

A lightweight fog and straight stream nozzle with multiple gallonage settings

Knox Box FDC Lock 2 1/2" NH/NST Male Locking Cap Hose Size (ID)_1 3/4" Hoses Type "DP" brass 1 1/4The 3110 model with 2" NH threads (7. 5 TPI x 3. 068 OD) is the most widely used configuration however, thread patterns and sizes vary by jurisdiction, so always verify the correct specifications with your local fire department before ordering. Knox 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"