Genuine Midland Haldex Relay Valve brake parts P/N: KN28132X, ready to ship worldwide! Call us with any questions.A refundable core charge of $50.40 applies to this item and will be collected at checkout. The core charge is refunded upon receipt of your returned core, subject to its condition; customer is responsible for return shipping. Call us at (877) 776-4600 for details.A factory handling fee of $25.00 per unit is added at checkout.FeaturesRemanufactured Relay Valve with Two Delivery PortsCover may be rotated without affecting performance or warranty.Used to apply and release service brakes on tractor or trailer.Tech SpecsSupply (2) 1/2″Delivery (2) 1/2″Control (1) 3/8″Crack Pressure 7.0 1.5 PSIRepair Kit RN10HBOEM Part Number N30106DCore Group 225Mounting 5/16″ on 1-1/2″ centersApproximate Weight 3 lbs.