£171.38 Industrial Triple Ladder - Zarges.High quality Triple Extension Ladders with D-shaped rungs for comfort and ease of use. These three section ladders can easily be adjusted rung by rung and feature rung hooks and locking tabs to ensure your safety both when the ladder is in use and in storage. Tested and certified to both BS 2037 Class 1 and EN 131. Designed with D shaped serrated rungs for comfortable use. Side stiles are box section for smooth handling and extra strength.