Date: 12/31/1969 Views: 4130
Date: 07/15/2004 Views: 6215
Date: 09/20/2009 Views: 6755
Date: 08/23/2023 Views: 797829
These black polyethylene fittings used in the vent system were a huge mistake. Do NOT use polyethylene fittings. Use nylon, brass or stainless steel.