The Narrow Door Loop (NDL18) is a low cost method of transferring low voltage power from the door frame to the locking device. Door loops are commonly used with electric mortise & cylindrical locks, electric exit trims and latch pullback devices. Surface Mounted Field sizable 18" cable. Durable powder coated finish. Pre-drilled hole sin the base. Flexible armored conduit.
Can be cut to length in the field
A - Aluminum
D - Duronatic DURO