MPLS is the Multi-Point Locking System which secures the door to the frame or an astragal at multiple points. This locking system provides a better seal, and enhanced security for your home. Our Therma-Tru door offering comes with a Therma-Tru approved, multi-point locking system. It has tongues that pivot out into the frame or shoot bolts that extend into the sill and head jamb.
In this video, Therma-Tru provides a brief tutorial on how to use the multi-point locking system quick connection tool. This tool fits into the door handle through the tiny slot located at the base of the handle. Feel free to contact Therma-Tru with questions or concerns about maintaining a door unit.