Andersen 3846 Lower Sash with White Exterior and Natural Pine Interior with Dual-Pane 5/8 Glass Color:Pine Interior / White Exterior The length of the arm

The length of the arm from the rivet to the elbow or bend is 7 1/2"

Andersen TW18210 (Lower Sash) White Exterior and Natural Pine Interior High Performance LowE4 Finelight Glass (1992 to May 2010) Works with 400 Series Tilt-Wash Double-Hung Windows manufactured from 1992 to May 24

Andersen 20210 Conversion Kit for Narroline Windows - White Exterior / White InteriorThis kit fits an Andersen Narroline window with a visible glass size (lower sash) of 20 7/16 inches wide by 13 15/16 inches high

Andersen 2032 Conversion Kit for Narroline Windows - White Exterior & Natural Pine Interior

Andersen TW2836 (Lower Sash) Forest Green Exterior and Natural Pine Interior High Performance LowE4 Glass (1992 to May 2010) Works with 400 Series Tilt-Wash Double-Hung Windows manufactured from 1992 to May 24

Andersen 3846 Lower Sash with White Exterior and Natural Pine Interior with Dual-Pane 5/8 Glass Color:Pine Interior / White Exterior The length of the armAndersen 3846 Narroline Double Hung Lower Sash White Exterior with Natural Interior Works with Andersen Narroline Double Hung 1968 to 2012. This sash has a White Exterior with Natural Interior. This window sash has Dual Pane 5 8 Glass. 5 8 dual pane glass offers standard thermal performance with great visibility. This sash features a patented Flexacron finish. This three step process ensures the best protection against weather and scratches. Flexacron