Date: 10/23/2003 Views: 4560
Date: 06/05/2008 Views: 3355
Date: 12/29/2011 Views: 3930
Date: 08/23/2023 Views: 82493
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.