QualityParts From Oregon That you can depend on. Max push load of 20 lbs, max pull load of 50 lbs: Suggested mounting: panel, a heavy duty, non-rotational locking control for a variety of industrial uses; Turning T-knob 1/4 turn locks and secures against spring tension and vibration; Conduit size: 1/4" galvanized, Overall length: 104"; Inner wire diameter: .080"; ; Oregon Equipment Parts 60-100 Control-Push Pull 104In T-Knob