Internally, the majority ofself-closing doorswill require adelayed action in order that equipment and the sick and fragilecan pass through without the doors causing a problem.The QS700 DA closer can hold the door in the open positionfor up to 30 seconds (adjustable). Suitable for heavy duty doorsup to 1100mm wide. All QS products carry a 5 year warranty.FeaturesDoors up to 1100mm 100kgsEN1154 fire rated5 year warrantySuitable for exterior useLatching and dampening actionStainless steel covers available

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