The transom overhead door closer is designed to be concealed within the transom header bar of the door. It provides controlled closing of a single or double action aluminium door or doors.
This Maco 4 roller lock has changed over the years and features the I.S. roller cam but will replace most Maco 4 rollers made since 2001.
Operation: Lift lever.
Latch reversal: Push in the square ...