Date: 02/18/2008 Views: 4767
Date: 07/12/2009 Views: 9315
Date: 12/31/1969 Views: 4530
Date: 08/23/2023 Views: 725576
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.