This JELD-WEN Sierra Horizontal Sliding Vinyl Window, 36 in. x 12 in., White, with Obscure LowE Glass and Screen has been designed not only for energy savings but also for privacy. Enjoy cooler summers and warmer winters with this Energy Star rated window. The whitewash vinyl sash is durable for long-lasting use and complements many styles of homes. A locking mechanism provides you with security.