Knox Box FDC Lock 1 1/2" Male NH/NST Locking Cap Model:3190 (9.0 TPI x 1.990 OD) May be used in some

May be used in some dry hydrant applications and to cover other non-pressurized openings with 4

if your area has experienced theft of brass or copper FDC components

one Plunger O-Ring

The Quarter Turn Forestry Couplings are made out of forged aluminum Common

Both hoses have garden hose thread connected to a residential garden hose spigot with a static pressure of 70 PSI

Knox Box FDC Lock 1 1/2" Male NH/NST Locking Cap Model:3190 (9.0 TPI x 1.990 OD) May be used in someKnox 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