11 Air conditioning installations; air-conditioning, air cooling and ventilation apparatus and instruments; boiler pipes for heating installations; anti-splash tap nozzles; tap water faucets; heating installations; water-pipes for sanitary installations; water conduits installations; faucets for pipes and pipelines being parts of sanitary installations; thermostatic valves as parts of heating installations; regulating accessories for water supply, namely, metered valves; safety accessories for gas pipes, namely, flashback arrestors and reverse flow check valves; floor drains; water intake apparatus; replacement parts for heating installations, namely, boiler pipes and thermostatic valves; flexible pipes being parts of bath plumbing installations; plumbing fixtures, namely, shower mixers; taps for pipes and pipelines being parts of sanitary installations; shower mixing valves