| W25 National Standard Journeyman Plumber Practice Questions Work | $153.98 |
| W24 National Standard Master Plumber Questions Workbook ICC Exam | $163.98 |
| F24 National Standard Master Plumber Questions Workbook ICC Exam | $81.99 |
| F25 National Standard Journeyman Plumber Practice Questions Work | $76.99 |
| G24 National Standard Master Plumber Questions Workbook ICC Exam | $86.99 |
| F13 National Standard Residential Building Contractor (C) 2015 | $80.99 |
| 2012 Commercial Mechanical Inspector | $78.99 |
| 2012 Residential Mechanical Inspector | $76.99 |