| Series | 53L |
| Image | Supplier | Item Code | Short Description |
|---|---|---|---|
| | Watts Regulator Company | WAT 0189749 | 1/2 53L-Z2-030 0189749 |
| | Watts Regulator Company | WAT 0190893 | 1/2 FP53L-175 0190893 |
| | Watts Regulator Company | WAT 0190128 | 1/2 53L-125 0190128 |
| | Watts Regulator Company | WAT 0190001 | 1/2 53L-100 0190001 |
| | Watts Regulator Company | WAT 0189747 | 1/2 53L-075 0189747 |
| | Watts Regulator Company | WAT 0190482 | 1/2 53L-150 0190482 |
| | Watts Regulator Company | WAT 0190575 | 1/2 53L-175 0190575 |
