Date: 12/31/1969 Views: 2534
Date: 11/13/2010 Views: 3418
Date: 07/29/2007 Views: 2764
Date: 08/23/2023 Views: 200464
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.