Do you recognise this diaphragm?

[moonlight]

I was given 10 of these from a retired plumber. He couldn't remember which boiler they had come from. Hopefully someone will recognise them.

 

[Alpha man]

It's an dis assembled Alpha or a vokera type!

 

[moonlight]

This one I took out of the package to take a photo. They are all in sealed bags but no labels. 🙁

 

[Darren Jackson]

Haven't seen one for ages I think it's from the old brass diverter on a mk1 Vokera combi pre condens. If memory serves me well. Could be wrong.

 

[jonnyswamp]

Looks like a Giananni (spelling ?) that fitted the older diverters in quite a few different combis

 

[townfanjon]

No right plumber would give you anything for free , if its any good would he would sell it lol