Air Injection Check Valve: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| One | 0.8 | 0.5 | B | |
| Each Additional | 0.2 | 0.1 | B |
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| One | 0.8 | 0.5 | B | |
| Each Additional | 0.2 | 0.1 | B |