Date: 12/31/1969 Views: 2781
Date: 01/05/2007 Views: 2992
Date: 04/18/2009 Views: 3038
Date: 08/23/2023 Views: 160336
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.