Date: 04/14/2012 Views: 55866
Date: 12/31/1969 Views: 3859
Date: 12/31/1969 Views: 2794
Date: 08/23/2023 Views: 111895
Date: 05/23/2007 Views: 540032
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.