Air Injection Check Valve: Labor Times
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Right Side | 0.7 | 0.4 | B | |
| Left Side | 0.7 | 0.4 | B | |
| Center | 0.7 | 0.4 | B | |
| All | 1.4 | 1.0 | B |
| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes | |
| Replace | ||||
| Right Side | 0.7 | 0.4 | B | |
| Left Side | 0.7 | 0.4 | B | |
| Center | 0.7 | 0.4 | B | |
| All | 1.4 | 1.0 | B |