Does this vaillant branded timer fit into this hole on the front of the boiler?
http://www.vaillant.co.uk/installer...stics/Controls/produkt_vaillant/vrt-360f.html
View media item 6371
http://www.vaillant.co.uk/installer...stics/Controls/produkt_vaillant/vrt-360f.html
View media item 6371