Date: 02/01/2004 Views: 4474
Date: 10/29/2005 Views: 4382
Date: 06/16/2007 Views: 6780
Date: 08/23/2023 Views: 765781
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.