This is a sliding patio door diecast keeper in a mill finish, with screw slots to allow for vertical adjustment, 3-1/8 in. on center mounting holes. Used by W and F doors and a variety of other patio door manufacturers.

• Used by W and F and a variety of other sliding patio door manufacturers
• Vertical screw slots allows for adjustment
• 4-1/4 in. x 15/32 in. keeper
• Diecast construction with an aluminum finish