The Series 3000 door return spring mechanism features the reliability of the Yale name and offers the following characteristics:

• Adjustable power range: from 2 to 4.
• Speed adjustment: ability to adjust closing and latching speed.
• Suitable for: installation on right and left doors.
• Dimensions: can be installed on doors with a width from 850mm to 1100mm and weight up to 60kg.

The spring is available in silver, brown, black, and white shades, matching all door colorings.