Hangzhou Wintek Building Products Co.'s window operator is available in 7.5-, 9.5- and 13.5-inch sizes. The product is a single arm operator body, which is high-pressure and die-casting, with a powder coat finish. The gear arm is manufactured with hardened carbon steel, electroplating and powder coating. Stainless steel is an option for coastal climates. Available colors include white, tan, brown, polished brass, stained nickel and gold, as well as customized options.