Date: 12/31/1969 Views: 3539
Date: 03/18/2013 Views: 4526
Date: 05/31/2009 Views: 2881
Date: 08/23/2023 Views: 94576
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.