The Briton 2100 Series of door controls provides a multi-level door closing solution to suit all projects, door applications and budgets. Easy to install - featuring unique Accufit installation system. Wind through adjustable for power size 2-6 making it suitable for most door applications including doors up to 1400mm wide and 120kg in weight. Adjustable strength backcheck helps to minimise damage to adjacent walls when door is forcibly thrown open. The Briton 2130BD also features delayed action, allowing slow moving pedestrians to pass through the door unhindered (not CE Compliant). Concealed adjustment to prevent unauthorised adjustment to closer. The 2130BD.L model is fitted with the Briton rounded "L" design cover. Please note, delayed action is not covered by CE marking or Certifire approval. 10 Year guarantee.