1 to 3 Metre Quick Lock System is a device for raising and lowering boats between stretches of water of different levels on river and canal waterways. The Quick Lock System is a fixed chamber whose water level can be varied. Quick Lock System is used to make a river more easily navigable or to allow a canal to take a reasonably direct line. 1 to 3 Metre Quick Lock System is available in a size ranging from 1 metre to 3 metre and 6.20kg to 17.20kg weight range.