Date: 12/31/1969 Views: 5395
Date: 02/12/2004 Views: 5047
Date: 03/11/2007 Views: 4619
Date: 08/23/2023 Views: 818865
These black polyethylene fittings used in the vent system were a huge mistake. Do NOT use polyethylene fittings. Use nylon, brass or stainless steel.