Mighty-Vac?

I’ve had the metal one for over 25 years with no issues. I was going to replace it because that diaphragm is going to break eventually. Did not know metal was even available any longer. I will ask the snap on guy next week when he comes to my shop.
My understanding was the metal could be rebuilt. Plastic not so much.
Sorry for the long wind.
Yes I recommend one for a home or shop.