[ Hydrants, ] plumbing fittings in the nature of stopcocks, faucets, double faucets, hot and cold mixer faucets for water pipes, faucet filters, water purifying apparatus, safety accessories for water pipes, namely, safety valves being plumbing fittings [ , pressure regulators for water installations and water pipes, safety accessories for water purifying apparatus, namely, safety valves being plumbing fittings ]