The Plumber's Choice 3 in. x 11.5 in. Yellow Air Intake Gas Safety Decal

This Air Intake decal conforms to the ANSI-ASME requirements and Massachusetts Gas Vent Sign Regulations. Since gas vents require constant maintenance, care and repair, it is of utmost importance that they be marked clearly and precisely. This label can be used to identify the Air Intake ducts for any of your commercial or residential installations (e.g. sprinkler system, ventilation system, water heater).