- Commonly used with the rear supply line shut-off cocks on towing trailers or converter dollies
- Prevents back charge (or false charging) of the brake system if supply line shut-off cock on the lead/towing trailer is closed
- Dimensions: Height 2.06” – Width 1.66” – Length 4.61” – Approximate Weight: 1.38 lbs.
- Air Piping Diagrams – See Technical / Air Piping Diagrams, multiple diagrams are applicable
