Use these weather-resistant panels to access plumbing, wiring, and controls behind exterior walls. Lined with polystyrene insulation, the panel door prevents sound from passing through and holds in heat to protect internal parts in cold temperatures. A neoprene gasket creates a tight seal between the door and frame to prevent drafts and increase insulation. They open with a paddle handle that folds flat to stay out of the way when not in use. The handle is keyed so you can lock them to prevent tampering. Choose them if you need several panels that open with the same key. The panel opening is up to _3/8” smaller than the cutout.