Date: 12/31/1969 Views: 6983
Date: 04/15/2009 Views: 7287
Date: 12/31/1969 Views: 5200
Date: 08/23/2023 Views: 843845
These black polyethylene fittings used in the vent system were a huge mistake. Do NOT use polyethylene fittings. Use nylon, brass or stainless steel.