Andersen M636 Sash Balancer with Screws

• Works with 200 Series Tilt-Wash Double-Hung windows manufactured from 2000 to Present.
• This sash balance is a block and tackle balancer located in the edge of sash.
• There are separate sash balances for the upper and lower sash.

Note: For balancer replacement instructions view the “Size Guide & Instructions” section..