A catch basin stormwater filtering apparatus includes a support frame and a filter medium supported by the support frame. The support frame includes a planar upper plate and a planar lower plate disposed below and in close proximity to the upper plate. The upper and lower plates have substantially the same outer dimensions, and the support frame defines a central opening. The filter medium is in the shape of a basket and includes lateral side walls of which adjacent walls are joined together, and a bottom wall, the lateral side walls defining a top opening which is disposed in alignment with the central opening of the support frame. The filter medium also includes a flange that extends outwardly from the lateral side walls at the top opening of the filter medium. The flange is interposed between and adhesively joined to the upper plate and the lower plate of the support frame.