A product cartridge for a radionuclide including a product vial having a permeable cap and surrounded by a radiation shield and a filling cartridge having a separate radiation shield, the filling cartridge is supported adjacent the permeable cap by coupling the radiation shield of the filling cartridge to the radiation shield of the product vial, the filling cartridge is moveable within the radiation shield of the filling cartridge to engage and pierce the permeable cap during filling of the product vial, the filling cartridge includes an aperture on an end opposite the product vial that receives a radionuclide, a scavenger that removes heavy metals from the radionuclide and a filter that filters the biological contaminants, simultaneously venting the product vial as the radionuclide flows from the aperture through the filling cartridge and into the product vial.