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Hoffman vents

Can anyone please tell us which straight Hoffman vent has the smallest hole for the lowest venting capacity?

Comments

  • strictly steam

    suggest posting on the other board, "strictly steam"
  • Big Ed_4
    Big Ed_4 Member Posts: 2,931
    Hoffmann

    Well the Hoffman 1B is a straight adjustable and the cheaper 40B is the non adjustable ...

    There was an error rendering this rich post.

  • Steamhead
    Steamhead Member Posts: 17,223
    The 41

    is Hoffman's smallest. If you need a smaller one, try the Gorton #4 with straight shank. 
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    Towson, MD, USA
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