air vents- 2 more Q’s

[MasterPlumbersKeymaster]

Thanks for the replies- two other questions: The air vents the plumber replaced looked like they are made of nickel, yet one of the replies mentioned brass. Are they all of a standard size (this is what the plumber told us), or do they come in a number of different sizes? Where can I get the correct ones (in Canada), and should we attempt replacement again?
Thanks.

[SylvanLMPParticipant]

Here Martin is a fantastic article written by a licensed expert plumbing, heating, Fire Supression piping systems and drain cleaning.

I read this article in Nov 1999 I saved it just for you .

Here Enjoy.. http://www.masterplumbers.com/plumbing/plumbviews/1999/steam_heating.html
[Edited by SylvanLMP on 20 April 2001]

[fourth yearParticipant]

They are made of brass and then chrome plated for appearances. Most of them are 1/8″ pipe thread but there are some 1/4″ with large wheel handles for commercial purposes.

[Author]

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