MAIN FEATURES

• Versatility, simple installation and single opener for muti-windows openning design
  
• Suitable for bottom sashes, top sashes and centre pivot windows
  
• Operate 2~4 sashes at the same time with chain opener GL-830
  
• Connect 10 mm dia. aluminum conduct with chain opener to achieve openning more sashes at once
• Window opening range 250mm or 380 mm
  
• Standard colors: white, black, grey, other colors are optional