Date: 07/27/2009 Views: 6735
Date: 06/19/2009 Views: 2754
Date: 01/11/2010 Views: 3169
Date: 08/23/2023 Views: 89651
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.