Hadley HAD1501UD Height Control Valve Kit - Includes height control valve, three lever options, 3/8" PTC plug, 1/4" PTC elbow, 3/8" PTC elbow, air line to convert to non-dump valve, mounting hardware, and instructions
HEIGHT CONTROL VALVE OEM HADLEY - SINGLE SUSPENSION PORT, Tractor and Trailer Valve - Integral Pressure NC Dump, High Flow with Short Delay, Single Suspension Port 3/8 PTC, Includes 3 Levers and 2 Mounting Brackets
Immediate Response IR, Standard Flow, 2 Suspsension Ports - 1/4" NPT with 14" Lever Arm, with 12" Adjustable Vertical Link, Lower Anchor and Mounting Bracket Kit