Date: 11/29/1999 Views: 5741
Date: 04/02/2006 Views: 6309
Date: 08/22/2008 Views: 7244
Date: 08/23/2023 Views: 751206
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.