| CSI Code | Short Description | Extended Description |
| 15400 | Plumbing Fixtures and Equipment |
| 15410 | Plumbing Fixture |
| 15440 | Plumbing Pump | Base - Mounted Pumps Compact Circulators Inline Pumps Packaged Booster Pumping Station Sewage Ejectors Sump Pump |
| 15450 | Potable Water Storage Tank |
| 15460 | Domestic Water Conditioning Equipment | Water Conditioners Water Softeners |
| 15470 | Domestic Water Filtrating Equipment | Disposable Filters Rechargable Filters |
| 15480 | Domestic Water Heater | Domestic Water Heat Exchangers Packaged Domestic Water Heaters |
| 15490 | Pool and Fountain Equipment | Fountain Equipment Reflecting Pool Equipment Swimming Pool Equipment |