Longacre Tireliefs 3-40 Psi. Tire Pressure Relief Valve - TIRELIEF - 3-40 psi - 100 Mesh Inlet Filter - 1/8 in NPT - Set of 4 - 52-50000Shop at DragRacingWheels.com for the best customer service, deals and live inventory on Longacre Tireliefs 3-40 Psi. ...