Replacement tube for Mk V Autovent. Length excluding piston : 9″ / 23 cms.
The Mk V unit was manufactured during the late 1970s and 1980s, and can be coloured silver or green. It was made from anodised pressed aluminium. The original power tubes were either green or black and were threaded at the end so they would fit into tube tube collar. If you need help in identifying your autovent please see our Autovent Identification Guide.