The innovative DX pull handle: The most elegantly styled handle ever installed on a storm door. CR3 Key Lock An Original design by Ideal Security, the DX Pull handle is available in bright and painted finishes as well as custom paint colors. The matching key lock (CR3) is available in all matching finishes and functions with 2 styles of inside deadbolts, also available in bright or painted finishes. The DX is available in a variety of latch sets or full kit formats, with or without key lock and deadbolts.