Abstract: This relates to an aerosol container of the type wherein the product is maintained separate from the propellant in a product bag. The propellant is placed into the container around the product bag through an opening in the top of the container, which opening is normally closed by a valve cup. The neck of the product bag is so positioned when the product bag is seated on the container that an annular flange thereof is vertically spaced over an associated container flange so that propellant may flow into the container without holding either the annular flange or the valve cup in an elevated position. The neck is resiliently deformable so that the valve cup may be first positioned on the container and bonded to the annular flange, after which, when the valve cup is released, the neck will axially extend to lift the valve cup to an out-of-the-way position to permit propellant charging.