Knox Box FDC Lock 2 1/2" NH/NST Male Locking Cap Hose Size (ID)_1 3/4" Hoses ” or other standard specified

” or other standard specified by the Commandant

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

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

or an adapter

Carbon Steel 6" Raised Faced ANSI 150 Flange x 5" Storz

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"