Detachable Restrictors

  • All metal components are manufactured from stainless steel 304
  • For large top hung vents, the friction arm can be used an extra support by fitting it below the existing friction hinge
  • This will have the effect of limiting the opening as well as adding stability to the sash
  • Fixed restriction to a wide range of opening angles
  • For 16mm to 18mm cavity height
  • Key releasable restriction for cleaning and maintenance with a special key (Key is not included)
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