Date: 03/15/2009 Views: 9281
Date: 03/29/2004 Views: 6945
Date: 05/04/2007 Views: 4175
Date: 08/23/2023 Views: 704824
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.