Fernco 1056-100 1" Black Condensate Line Connector with Clamps - Established in 1964, Fernco began in a Master Plumber’s garage with a patent of the ‘Donut.’ Fernco began to work closely with wholesale distributors to ensure products were manufactured and delivered quickly to meet customer demand. After more experimentation, Fernco introduced the first Fernco flexible coupling to the market in 1973 with a bid from Dallas, TX.