This item is no longer available. The new version is 166138 which is made out of plastic.

Patio Door Weatherstrip Channel
Hurd CHES / HES Inverted U-Cap Bottom Patio Door Weatherstrip with Channel
This weatherstrip fits into the bottom rail of sliding door, has cutouts for Patio Door Roller
Fits: 3-0 Nominal wide door panel
Actual Length: 36-3/8 Inch
Screw Holes: 3
Roller Cut Out: 6-3/8 inch
Width: 5/8 on Metal Backing, Flairs to 3/4\" at Weather-strip
Height: 1/2 inch
Note:
Many old style were plastic, newer ones are Metal
Related Patio Door Parts:
13093 - Tandem Roller Assembly