Pilot-Operated Check Valve for Balancing Valve
| Model | |
| Internal Drain | External Drain |
| HK2M-GY*G-025B | HK2M-GY*GD-025B |
| HK2M-GY*GE-025B | HK2M-GY*GED-025B |
| HK2M-GY*G-03 | HK2M-GY*GD-03 |
| HK2M-GY*GE-03 | HK2M-GY*GED-03 |
| Model | |
| Internal Drain | External Drain |
| HK2M-GY*G-025B | HK2M-GY*GD-025B |
| HK2M-GY*GE-025B | HK2M-GY*GED-025B |
| HK2M-GY*G-03 | HK2M-GY*GD-03 |
| HK2M-GY*GE-03 | HK2M-GY*GED-03 |