Knox Box FDC Lock 2 1/2" NH/NST Male Locking Cap Model:3120 (6.0 TPI x 3.250 OD) User must have sufficient water

User must have sufficient water pressure for the 90 GPM version to project maximum stream distance

This compact wrench can be easily carried in your jacket pocket

Our 3/8 inch and 5/8 inch band clamp hand tool applies band clamps to complete the connection between shank style couplings and hoses

hose cart will save time and eliminate back strain from carrying hoses with our mobile hose cart

Carbon Steel 4" Flange x 2 1/2" Female NH

Knox Box FDC Lock 2 1/2" NH/NST Male Locking Cap Model:3120 (6.0 TPI x 3.250 OD) User must have sufficient waterThe 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"