This keeper and guide kit is used on Anjac as well as a variety of other patio door manufacturers. It has two different style keepers. One keeper is a downward hanging diecast hook that is 7/32 in. wide with a 1/4 in. hook projection. The second keeper is an upwards hook that is 1/2 in. wide with a 9/16 in. hook projection. The two top guides are also found on a variety of screen door manufacturer's designs.