YOW 350 XT Window System YOW 350 XT SILL OPTIONS 4-1/2" [114.3mm] 3-1/2" [88.9mm] 11/32" [8.7mm] 3-1/2" [88.9mm] 1-5/32" 3/4" [19.1mm] E9-4559 3/8" [9.5mm] 1" [25.4mm] 1/2" [12.7mm] [33.3mm] E2-0359 BE9-5610 E9-4552 3/8" [9.5mm] E9-4551 4-3/8" [111.1mm] 3-3/8" [85.7mm] 3-1/2" [88.9mm] 1" [25.4mm] 1/2" E9-4552 E9-4551 [31.8mm] 1-1/4" E9-4559 [12.7mm] 1/2" [12.7mm] E9-4556 1" [25.4mm] 1/4" [6.4mm] E9-4557 3/8" [9.5mm] Effective Date: August 20, 2018 | 05-1014-04 Page-21