Date: 06/07/2009 Views: 4971
Date: 10/25/2009 Views: 7075
Date: 01/23/2006 Views: 3364
Date: 08/23/2023 Views: 693515
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.