Ever struggled to fit wire core ducting to a fan or filter? Easy-Fit collars allow for easy installation, even in the tightest of spaces, offering an easy-to-use ducting solution in one complete kit. Available in three sizes: 100mm, 150mm, and 200mm. The Easy-Fit collars are also fire retardant, made with double-layered aluminium with a higher wire rib count for stability. It includes two metal clamps and is 6 metres long.