Kuhnke 47.200 Pneumatic Outlet Restrictor.
The Kuhnke 47.200 exhaust restrictor is used for regulating the speed of cylinders and can be screwed directly into the exhaust port of miniature M5 ported valves. Adjusting the flow can be made with the use of a Hex key. The outlet restrictor is equipped with a locking nut to prevent tampering after the setting is made.