Use this Vapor Check Valve to return vapor to the truck during terminal loading and service station drops. The valve has 3" female NPSM threads, a 4" cam and groove, and tapped mounting holes for the EBW Air Interlock Brake.
| Material: | Aluminum guide, Buna-N gasket, stainless steel stem and spring | 
| Thread size: | 3" | 
| Weight: | 2.55 lbs. | 
 
                     
                         
             
             
            