This cylinder locking device provides keyed access from the outside of the door. The night latch also has a small thumb latch that allows the spring latch to remain in a retracted position, which allows access at any time.

Aluminum is ideal for any installations or evironments that require a strong, lightweight and rust-resistant access door.

To facilitate access and reduce door load, Karp can manufacture any size access door in a double leaf style.

A 1/16" x 3/8" neoprene gasket can be added to the door providing a tighter seal between the door and door frame adding protection from exposure to outside elements. The gasket is standard on all roof hatches.