Date: 09/02/2009 Views: 6280
Date: 07/01/2007 Views: 4309
Date: 02/15/2008 Views: 7180
Date: 08/23/2023 Views: 789705
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.