Date: 06/09/2006 Views: 7969
Date: 12/22/2008 Views: 7763
Date: 12/31/1969 Views: 7353
Date: 08/23/2023 Views: 807285
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.