Date: 01/31/2004 Views: 5178
Date: 06/19/2009 Views: 4654
Date: 12/31/1969 Views: 5821
Date: 08/23/2023 Views: 818545
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.