Date: 12/31/1969 Views: 5681
Date: 04/15/2006 Views: 5356
Date: 03/12/2012 Views: 12218
Date: 08/23/2023 Views: 693513
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.