The Fill Tube allows for bottom filling of underground storage tanks in conventional and dual point Stage I vapor recovery applications. The fill tube slips easily into the existing fill riser pipe on the storage tank. The flared top allows the tube to be secured in place with PEMCO Model 250 Top Seal Fill Adaptor or Model 252 Side Seal Fill Adaptor. The fill tube features an aluminum body with a thin wall design for maximum flow and includes a Buna-N gasket.