From the Manufacturer This sliding window roller assembly is constructed from steel. It is attached to a nylon housing and has a flat edge roller. This type of roller assembly is used by Keller Windows Nylon Housing Window Roller CRL G3109 Sliding Window Roller With 5/16" Steel Wheel For Keller Windows Keller Window Replacement Parts This sliding window roller assembly is constructed from steel. It is attached to a nylon housing and has a flat edge roller. This type of roller assembly is commonly used by Keller Windows. Need Help? Our customer service team is here for you. Supplies for every job. 10 million items and the exact one you need. When you need it fast, count on It is attached to a nylon housing and has a flat edge roller. JIS G 3109 - 1994 - (Steel Bars-For Prestressed Concrete) - SBPR-SBPD Used by Keller Windows
