Home Warning Sign is an NFPA 13D-compliant white powder-coated 18-gauge aluminum (.040 aluminum) warning sign required for homes with a multipurpose piping system designed to serve domestic and fire protection needs. This 5 in. (127 mm) x 7 in. (177.8 mm) sign features red letters at least one-quarter inch (6mm) in height in accordance with NFPA 13D.
The full text of this sign reads: in. The water system for this home supplies fire sprinklers that require certain flows and pressures to fight a fire. Devices that restrict the flow or decrease the pressure or automatically shut off the water to the fire sprinkler system, such as water softeners shall not be added to this system without a review of the fire sprinkler system by a fire protection specialist. Do not remove this sign. in. This Home Warning sign must be installed next to the main shutoff valve of select one-and-two family dwellings and manufactured homes. This sign is drilled with four (4) holes for easy hanging.