Coils as parts of distilling, heating or cooling installations; Cooling installations for water; Distillers for chemical processing; Electric heaters for commercial use; Faucets for pipes and pipelines being parts of sanitary installations; Gas condensers, other than parts of machines; Pipes being parts of sanitary facilities; Pipes for heating boilers; Plumbing fitting, namely, vacuum release safety valve for flow shutoff in pools and spas; Steam generating installations