Abstract: A hood cover insert for substantially filling the opening in a hood cover of a propane tank. The hood cover insert includes a block member having a base wall and a top wall. A perimeter wall extends between and is integrally coupled to the base and top walls. The base wall has an elongate slit extending upwardly therein. The block member comprises a resiliently flexible material. The block member is positioned in the opening of the hood cover such that the gas line is movably extended upwardly in the slit and the opening is substantially closed.