Date: 12/31/1969 Views: 3566
Date: 02/19/2006 Views: 3098
Date: 03/17/2008 Views: 2725
Date: 08/23/2023 Views: 83999
Date: 05/23/2007 Views: 531975
Old 1/4 in (6.4 mm) vent on the top. Totally inadequate for the job. New 3/8 in (9.5 mm) vent on the bottom.