| 2007 NAICS | 2012 NAICS | 2017 NAICS | Corresponding Index Entries | |||
| 332919 | 332919 | 332919 | Aerosol valves manufacturing | |||
| 332919 | 332919 | 332919 | Boiler couplings and drains, plumbing and heating-type, manufacturing | |||
| 332919 | 332919 | 332919 | Breakers, vacuum, plumbing, manufacturing | |||
| 332919 | 332919 | 332919 | Couplings, hose, metal (except fluid power), manufacturing | |||
| 332919 | 332919 | 332919 | Elbows, pipe, metal (except made from purchased pipe), manufacturing | |||
| 332919 | 332919 | 332919 | Flanges and flange unions, pipe, metal, manufacturing | |||
| 332919 | 332919 | 332919 | Hose couplings, metal (except fluid power), manufacturing | |||
| 332919 | 332919 | 332919 | Lawn hose nozzles and lawn sprinklers manufacturing | |||
| 332919 | 332919 | 332919 | Nozzles, firefighting, manufacturing | |||
| 332919 | 332919 | 332919 | Nozzles, lawn hose, manufacturing | |||
| 332919 | 332919 | 332919 | Plumbing and heating inline valves (e.g., check, cutoffs, stop) manufacturing | |||
| 332919 | 332919 | 332919 | Sprinklers, lawn, manufacturing | |||
| 332919 | 332919 | 332919 | Steam fittings, metal, manufacturing | |||
| 332919 | 332919 | 332919 | Traps, water, manufacturing | |||
| 332919 | 332919 | 332919 | Unions, pipe, metal (except made from purchased pipe), manufacturing | |||
| 332919 | 332919 | 332919 | Valves, inline plumbing and heating (e.g., cutoffs, stop), manufacturing | |||
| 332919 | 332919 | 332919 | Water traps manufacturing |