Click to expand Tap to zoom Viessmann Pre-plumbing jig for surface mounting including valves - ZK04929 by VIESSMANN SKU ZK04929 Please call to check availability before ordering Live Chat / 01985 850982 Vitodens 111-W PlusBus Pre-plumbing jig. Vitodens 111-W PlusBus Pre-plumbing jig for surface mounting including valves, comprising of: Pre-plumbing jig Valves Gas valve Fittings Accessories