Fixtures and Trap Sizes
Recommended trap sizes for different types of fixtures
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Recommended trap sizes for different types of fixtures can be found in the table below.
| Fixture | Trap Size (in) |
| Bathtub | 1 1/2 |
| Bidet | 1 1/2 |
| Dishwasher | 1 1/2 |
| Drinking fountain | 1 1/4 |
| Floor drain | 2 |
| Kitchen sink | 1 1/2 |
| Laundry tub | 1 1/2 |
| Lavatory | 1 1/4 |
| Public toilet | integrated in the fixture |
| Shower | 2 |
| Toilet | integrated in the fixture |
| Urinal | 2 |
| Washing machine | 2 |
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