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Aluminum Sign for fire sprinkler systems.  4" x 6" Item:  This Valve Controls Automatic Sprinkler System And Must Always Be Kept Open Sign, Aluminu...

Aluminum Sign for fire sprinkler systems.  Item:  Valve Shut Sign, Aluminum, 8" x 1 1/4" Aluminum signs have a white background with red ink. They ...

Aluminum Sign for fire sprinkler systems. 5" x 7" Item:  Warning The Water System For This Home Supplies A Fire Sprinkler System Sign, Aluminum, 5"...

Aluminum Sign for fire sprinkler systems. 6" x 2" Item:  Water Motor Line Sign, Aluminum, 6" x 2" Aluminum signs have a white background with red i...

Aluminum Sign for fire sprinkler systems. 6" x 2" Item: Wet Standpipe Sign, Aluminum, 6" x 2" Aluminum signs have a white background with red ink. ...