Where to buy replacement conservatory roof vent?

[PeskyWabbit]

I have an old conservatory that was present when I bought my house, it has a polycarbonate roof with two circular solar vents in the roof/ceiling. The exterior covers of these vents have now both blown off in the recent storms and are no longer watertight.

I haven't disasembled yet but the vents appear to be one piece that sits externally, with the central part inserted through a hole (roughly 100mm in diameter) and held in place by an interior sleeve that fits snug around the central part.

I've done some research and reckon this model has long been discontinued, but I can't find a like-for-like alternative. Does anyone have any recommendations for a vent I could use to replace?

 

[HERTS P&D]

replacement conservatory roof vent round - Google Search

Andy

 

[Harry Bloomfield]

Amazon.co.uk : solar vent

Any of those any use?

 

[Tigercubrider]

My old roof had two of those - from wickes.
Solar powered, on/off and you could twist them 120° and pull the mushroom cap down for winter.