| Diameter | 3/8 in ID x 1/2 in OD |
| Image | Supplier | Item Code | Short Description |
|---|---|---|---|
| | Watts Regulator Company | 0240719 | 20ANW-2131-24 |
| | Watts Regulator Company | 0242350 | 20A-2132-30 |
| | Watts Regulator Company | 0242369 | 20C-2131-18 |
| | Watts Regulator Company | 0242374 | 20C-3232-12 |
| | Watts Regulator Company | 0242352 | 20A-3122-24 |
| | Watts Regulator Company | 0242354 | 20A-3122-36 |
| | Watts Regulator Company | 0242356 | 20A-3135-18 |
| | Watts Regulator Company | 0242359 | 20ANW-2132-18 |
| | Watts Regulator Company | 0242360 | 20ANW-2132-24 |
| | Watts Regulator Company | 0242363 | 20C-2121-12 |
| | Watts Regulator Company | 0242364 | 20C-2121-18 |
| | Watts Regulator Company | 0242609 | 20NW-S0270-18 |
| | Watts Regulator Company | 0242610 | 20NW-S0270-24 |
