11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
plumbing supplies, namely, plumbing fittings, all primarily of plastic, namely, couplings, elbows, tees, adapters and swivels, gaskets, compression couplings, and compression coupling run tees being plumbing fittings; drain, waste and vent (dwv) fittings, namely, couplings, connectors, hubs, p-traps, flanges, grates, sieves, caps, elbows, expansion joints, and clean outs being dwv fittings
17
Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes; plastics in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, not of metal.
plastic plumbing fittings, namely, couplings, elbows, tees, adapters and swivels designed for use with pex tubing for potable water applications