Andersen® Gliding Patio Door Tandem Roller Assembly (1982 to Present)
Go To The Site Below:http://amzn.to/1z2IUoB
Andersen Gliding Patio Door Tandem Roller Assembly with Bracket. Works with 200 Series Narroline, 200 Series Perma-Shield and 400 Series Frenchwood Gliding Patio Doors manufactured from 1982 to Present. Dual ball bearing rollers on bottom of the operating door panels provide smooth gliding operation with self-contained leveling adjusters. We recommend replacing both rollers at the same time.