This 45-degree flue elbow from Viessmann offers flexibility in siting your boiler system. It's ideal for installations in challenging locations like kitchen cupboards, garages, or basements, allowing the flue to be positioned further from neighboring buildings. This pack contains two flue elbows, suitable for various Viessmann Vitodens condensing boiler models including the 050, 100-W, 111-W, 200-W, 222-F, and 242-F.