Plumbing fittings being environmental control apparatus, namely, self-regulating valves, self-regulating valves specifically designed and constructed for use in wastewater flow regulation, storm water drainage systems and Combined Sewer Overflow (CSO) applications; wastewater, storm water and CSO management equipment, namely, plumbing fittings being valves and self-regulating valves for controlling, regulating, and managing the flow of wastewater, storm water and CSO; plumbing fittings being self-regulating valves for wastewater flow regulation, storm water drainage and CSO used in municipal, commercial, and residential applications for the purpose of preventing flooding, managing storm water runoff, managing wastewater, and controlling CSO flow; structural and replacement parts for all of the aforesaid goods