4" ASTRA FIRE SPRINKLER ALARM VALVE MODEL B FLANGE/FLANGE

4" ASTRA  FIRE SPRINKLER ALARM VALVE MODEL B FLANGE/FLANGE

In a wet pipe sprinkler system, the sprinkler heads connect to pipes that are filled with pressurized water. When a fire is detected, the sprinkler system activates automatically to extinguish the fire.

MADE IN CANADA

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TRIM KIT SOLD SEPERATELY:  MODEL AVTRIM60 FOR 4-6" VALVES