tubular brass plumbing products, namely, P-traps, S-traps, quarter bends, J-bends, sink traps, washing machine traps, repair traps, sink wastes, garbage disposal hookups, outlet wastes, waste arms, extension tubes, straight threaded tubes, slip connections, copper and brass tubing, tailpieces, pop-up assemblies, closet flush elbows, wrot plugs with chain and stopper, brass bath wastes, lavatory and water closet supply tubes, and fittings; tubular plastic plumbing products, namely, P-traps, S-traps, sink traps, repair traps, J-bends, garbage disposal hook-ups, outlet wastes, waste arms, sink tailpieces, extension tubes, tailpieces, baffle tees, slip connectors, tubing, adaptors, nipples, elbows, and quarter bends; plastic bath wastes; sink strainers; flexible lavatory and water closet supplies, fittings, and stops; plastic pipe fittings made from steel, brass, and nylon