pump inlet suction diffusers for mounting to pump inlet flanges to reduce fluid flow turbulence, streamline fluid flow, and trap foreign materials; plumbing fixtures, namely, pipe nipples, metal pipe line strainers for use in trapping foreign material in plumbing tubes, conduits and piping; plumbing fixtures, namely gas services stop cocks; plumbing fixtures, namely, brass, iron and steel plugs, unions, union couplings, branch connections; plumbing fittings, namely angle valves, stop and drain valves, strainers, ball valves, flush valves, self closing valves, gate valves, plug valves, ball cocks and faucets; sprinkling and flushing hydrants and parts thereof