The DiversiTech bright red emergency switch plates are for use with gas and oil burners. Switch covers come with emergency and gas or oil already printed on them. Made from high strength steel. Red enamel powder-coated for added visibility and durability. Standard toggle opening on narrow switch plate to fit utility boxes. UL, cUL, RoHS compliant. Diversitech Emergency Switch Cover, 4-1/4 in Length, For Use With: Utility/Handy Box and Gas Burners, Steel, Enamel Powder Coated, Red