- City of Greenville (Texas, USA)
- City of Paris (Texas, USA)
- City of Commerce (Texas, USA)
- City of Emory (Texas, USA)
- City of New Braunfels (Texas, USA)
- City of Mathis (Texas, USA)
- City of Texarkana (Texas, USA)
- City of Cooper (Texas, USA)
- City of Pharr (Texas, USA)
- City of Midlothian (Texas, USA)
- City of Longview (Texas, USA)
- City of San Diego (California, USA)
- City of Fairfield (California, USA)
The Filter Judge is a tool for taking a vertical core sample of media (sand, anthracite, garnet, etc.) from a filter in a water treatment faciltiy.