6
Metallic drainage grates, grate screws, grate locks, frame screws, frames, catch basins, and channel drains
9
Water meter boxes and lids
11
Valve boxes and lids for use in ventilation systems and HVAC pads; dripper irrigation systems comprised of bubblers, emitters, flow controllers, misters, sprinklers, jets, pressure regulators for water, water filters, equipment pads; plumbing fittings, namely, valves and drains; pipe spigots
17
Plastic sheeting for use as a root barrier, root barrier plastic fabric; plastic sheeting to protect tree trunks; plastic hose fittings in the nature of flexible couplings, connectors, flexible saddles, threaded nipples used for sewer, drain, waste and vent piping for use in utility and plumbing applications, non-shear couplings, plastic tubing for irrigation, plastic pipe saddle clamps, plastic pipe connectors, plastic o-ring pipe gaskets, plastic solvent weld fittings, gaskets, connector spud nuts, drain doughnuts, adaptors, end caps and end outlets used for drainage and/or irrigation systems
19
Non-metal fence panels for use as tree trunk protectors; nonmetallic drainage products, namely grates, channel drains, catch basins, storm water dry wells, grid pavers, catch basin outlets, gravel bags and snake bags to be filled with gravel that act as a physical barrier to prevent dirt and trash from washing into storm drains