Pella Sliding Patio Door Rubber Sill Bumper with Head Bumper and Bracket. 
The sill bumper fits over the rail, the head bumper is screwed into the header 
Used for 2 or 3 panel doors. The 4 panel, double doors use 2 sets of sill bumpers and head bumpers 
Note: Use as replacement for Active door  Pre 6/2003 OXXO doors.

Head Bumper Length: 4-½" 
Head Bracket Length: 3-¾" 
Head Bracket Screw Hole Spacing: 2-½" (outside), 1-5/16" (inside) 
Sill Bumper Length: 4-7/8" 

Priced and sold as a pack
Includes: 1 sill bumper, 1 head bumpers, 1 head brackets, 2 installation screws