Date: 05/06/2009 Views: 5449
Date: 01/20/2010 Views: 7569
Date: 12/31/1969 Views: 4814
Date: 08/23/2023 Views: 772126
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.