| 2018 Commercial Mechanical Inspector | $83.99 |
| F25 National Standard Journeyman Plumber Practice Questions Work | $81.99 |
| 2015 Commercial Building Inspector | $83.99 |
| 2015 Residential Mechanical Inspector | $81.99 |
| F31 National Standard Journeyman Mechanical Questions Workbook | $86.99 |
| 2018 Residential Mechanical Inspector | $81.99 |
| W25 National Standard Journeyman Plumber Practice Questions Work | $81.99 |