Airpot Corp’s Stock Piston and Cylinder kits make great building blocks for engineers who have the need to design specialized mechanical or pneumatic devices involving volume displacement, pumping, bearing, actuation, or visible indication of position. The kits feature Airpot’s borosilicate glass cylinder and graphite piston material technology which allows the use of extremely tight tolerances to achieve a high precision fit and control of leak while offering a seal-less, self -lubricating pneumatic or light-load bearing device.