Date: 01/31/2009 Views: 6157
Date: 03/18/2004 Views: 7858
Date: 10/25/2009 Views: 8561
Date: 08/23/2023 Views: 838719
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.