Date: 12/31/1969 Views: 2673
Date: 04/09/2006 Views: 3321
Date: 12/31/1969 Views: 9705
Date: 08/23/2023 Views: 144423
Date: 05/23/2007 Views: 549729
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.