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ASEC Concealed Locking Extended Restrictor Kit


Extended arm concealed Window Restrictor Kit by Asec, available in left handed and right handed variants, with an arm length of 113mm. These restrictors have a sturdy stainless steel and zinc alloy contruction, supplied with installation instructions and packing pads. The restrictors may be overridden to allow the window to be fully opened using the key if required. Please note that to ensure correct operation of the restrictor, it is important that the correct stud plate height is used to suit the cavity between the sash and the frame.


  • Automatic locking and engagement
  • Concealed fitting
  • Restricts sash to 110mm opening
  • Suitable for use with UPVC, timber and aluminium windows
  • Dedicated key release

Availability: Out of stock


  • Weight: 100g
  • Finish: Silver
  • Handed: Left Hand
  • Keys Supplied: 1
  • Length: 120mm Arm Length
  • Pack Quantity: 1 Kit
  • Packaging: Bagged
  • Screw Centres: 24mm (Stud Plate) 36mm (Restrictor)
  • Manufacturer Reference: AS11630