Flexible pipes being parts of basin plumbing installations; Plumbing fittings, namely, fresh water fills for recreational vehicles; Gas water heaters; Thermostatic valves as parts of heating installations; Gas regulators; Spark igniters for gas appliances; Plumbing fittings, namely, couplers; Heat-stabilized polypropylene pipes for heating installations; Safety accessories for gas pipes, namely, flashback arrestors and reverse flow check valves; Pressure regulators for gas installations; Port...