Andersen 400 Series Tilt Wash Double Hung 1128 Balancer Unit Number_G336 Screen dimension is 29 13/16

Screen dimension is 29 13/16 inches wide by 13 7/16 inches high

Andersen TW3432 (Upper Sash) White Exterior and Natural Pine Interior High Performance LowE4 Glass - No Grille Grommets This Sash has no grille grommets

Andersen 3052 Narroline Double Hung Upper Sash Terratone Exterior with Terratone Interior Works with Andersen Narroline Double Hung 1968 to 2012

This screen measures 27-7/8" wide by 34-27/32" high

Andersen TW3046 (Lower Sash) White Exterior and White Interior High Performance LowE4 Glass - No Grille Grommets This Sash has no grille grommets

Andersen 400 Series Tilt Wash Double Hung 1128 Balancer Unit Number_G336 Screen dimension is 29 13/16Andersen 1128 Sash Balancer Block and Tackle with Shoe Works with 400 Series Tilt Wash Double Hung windows manufactured from 1992 to Present. This is a block and tackle balancer with a shoe. There are separate sash balancers for the upper and lower sash. Andersen made changes to the balanace design in November 2016. When replacing balances on windows before 2016 you'll need to order two. Note: This balancer may work on either Tilt Wash (DC) units