Date: 12/31/1969 Views: 5455
Date: 07/09/2006 Views: 5657
Date: 10/11/2004 Views: 8495
Date: 08/23/2023 Views: 795398
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.