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” or other standard specified by the Commandant
snow plow drivers and highway maintenance personnel will be able to see and avoid damaging the hydrants
A lightweight fog and straight stream nozzle with multiple gallonage settings
Type "AA" spool stainless steel 4 inch male camlock (Cam & Groove) coupler to 4 male camlock (Cam & Groove)
Knox Box FDC Lock 2 1/2" NH/NST Male Locking Cap Hose Size (ID)_1 3/4" Hoses ” or other standard specifiedThe 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"
