This Pella white casement window features a classic aluminum and wood combination frame with a right-hand crank-open operation. The obscured tempered glass provides privacy while the argon gas fill improves energy efficiency. Solar Heat Gain Coefficient (SHGC) is 0.50 and Visible Transmittance is 0.58. Rough opening size is approximately 21"W x 40"H; actual unit size is 20.5"W x 39.5"H. All original hardware is included. Item is in like-new, in-box condition with no damage or missing parts.