121-6078, Festo, Festo QS Series Elbow Threaded Adaptor, G 1/4 Male to Push In 6 mm, Threaded-to-Tube Connection Style, 186149 Festo QS Series Elbow Threaded Adaptor, G 1/4 Male to Push In 6 mm, Threaded-to-Tube Connection Style, 186149