3C 300, HEG, 1″ = 3.88 kpc. The black circle in the first panel has a diameter of 3 times the seeing of the observations; the dashed line in the second panel marks the radio position angle. This source shows an elliptical shape (the most extended f our sample) with a residual filamentary structure in the NE direction. The whole major axis of the ellipse has a length of ∼7.2″ (∼27.94 kpc), from its east end the emission lines extend beyond ∼12″ (∼9.31 kpc). The flux of the gas is major in correspondence with the nucleus and it peaks again at ∼14.25 kpc toward SW from the center. The outflow is mainly dominated by the blue component which maximum velocity is ∼ − 2160 km s⁻¹. The red component of the gas is detected in the NE filaments with a velocity that arrives up to ∼1450 km s⁻¹. The kinetic energy presents two peaks located in the same position as those of the flux. This double peak is probably a sign of two sources from which the outflow originates.