Sizes to fit most popular above-ground and in-ground tanks. Durable cast iron with corrosion-resistant powder coated finish. Whistles while tank is being filled; stops whistling when oil has reached safe capacity.
The Morrison stick port adaptor is designed to facilitate the installation of a 2" overfill valve on a 4" tank opening and also allow the use of a standard gauge stick. It is manufactured with 2 openings one for the overfill valve and a second opening for the stick port.