• Works with 200 Series and 400 Series Gliding patio doors.
• 1 Pair upper rollers (Part No. 1997063) work with 1 pair lower rollers (Part No. 1997310) at the same time.
• Perfect replacement pack for Andersen gliding insect screens manufactured from 1991 to present.
• Edge adjustment arm allows for easy and quick adjustments with a flat head screwdriver.
• No tools required to install, the roller housing has two tabs that lock under the frame to hold in place.