Date: 09/12/2006 Views: 7633
Date: 09/14/2008 Views: 4244
Date: 01/24/2010 Views: 4219
Date: 08/23/2023 Views: 693413
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.