A filling apparatus comprising: a frame having axially spaced upper and lower laterally-extending frame members (76, 78) attached via first and second axially-elongated, laterally spaced supports, wherein the upper frame member defines at least one slot and device support member extending therefrom toward the lower frame member dimensioned to receive a device (10, 210) to be filled therein such that an end (12, 212) of the device (10, 210) is substantially flush with the upper frame member, a filling device support positioned above the frame and including at least one module, at least one respective first plate, and at least one respective second plate, axially aligned with one another, and a filling device mounted between each of the at least one module and first plate, wherein the module, first plate and second plate are movable with respect to one another and with respect to the frame between (i) an initially disengaged position, wherein the first plate is axially spaced from the module, the second plate is axially spaced from the first plate, and the upper frame member is axially spaced from the second plate, (ii) a first engaged position, wherein the first plate is axially spaced from the module, the second plate is axially spaced from the first plate, and the second plate is engaged with the upper frame member, (iii) a second engaged position, wherein the first plate is axially spaced from the module, the first plate is engaged with the second plate, and the second plate is engaged with the upper frame member, and (iv) a third and fully engaged position, wherein the module is engaged with the first plate, the first plate is engaged with the second plate, and the second plate is engaged with the upper frame member. a frame having axially spaced upper and lower laterally-extending frame members (76, 78) attached via first and second axially-elongated, laterally spaced supports, wherein the upper frame member defines at least one slot and device support member extending therefrom toward the lower frame member dimensioned to receive a device (10, 210) to be filled therein such that an end (12, 212) of the device (10, 210) is substantially flush with the upper frame member, a filling device support positioned above the frame and including at least one module, at least one respective first plate, and at least one respective second plate, axially aligned with one another, and a filling device mounted between each of the at least one module and first plate, wherein the module, first plate and second plate are movable with respect to one another and with respect to the frame between (i) an initially disengaged position, wherein the first plate is axially spaced from the module, the second plate is axially spaced from the first plate, and the upper frame member is axially spaced from the second plate, (ii) a first engaged position, wherein the first plate is axially spaced from the module, the second plate is axially spaced from the first plate, and the second plate is engaged with the upper frame member, (iii) a second engaged position, wherein the first plate is axially spaced from the module, the first plate is engaged with the second plate, and the second plate is engaged with the upper frame member, and (iv) a third and fully engaged position, wherein the module is engaged with the first plate, the first plate is engaged with the second plate, and the second plate is engaged with the upper frame member.