Date: 12/31/1969 Views: 2341
Date: 06/29/2008 Views: 3865
Date: 09/19/2010 Views: 2843
Date: 08/23/2023 Views: 92876
Date: 05/23/2007 Views: 534787
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.