Discontinued, replace with 508139

Flat nylon roller assembly for sliding windows.

It is installed on the vertical rail
This design is used by several manufacturers including A-1 Aluminum, Horizon, Sun Air, International and Patio Concepts.

Material: Nylon
Roller Diameter: 1/2 inch
Roller Edge Type: Flat
Housing Length: 1-15/16 inch
Guide leg Slot width: 1/16 inch

Contents
2 Roller assemblies

Priced and sold in pairs.