| 2012 Residential Mechanical Inspector | $153.98 |
| W32 National Standard Residential Mechanical Exam Workbook | $76.99 |
| F31 National Standard Journeyman Mechanical Questions Workbook | $81.99 |
| F25 National Standard Journeyman Plumber Practice Questions Work | $76.99 |
| F29 National Standard Master Mechanical Questions Workbook | $81.99 |
| 2018 Residential Mechanical Inspector | $76.99 |
| 2015 Residential Mechanical Inspector | $76.99 |
| 2012 Commercial Mechanical Inspector | $78.99 |