Buyers Products K70 Series Single Lever Air Control Valves give you complete control of your pneumatic functions. These stackable valves are available in 3-way (raise, lower, and hold) or 5-way (PTO, raise, lower, inlet, and exhaust functions with a push button auxiliary function) models with 3-position (raise, lower and neutral) controls. Flexible design makes it easy to adapt the control valves to your application . Movement of the handle in either direction allows controlled proportional pressure output to work ports 'A' or 'B' to allow feathering.