Hydrants
| Company | Website |
| Clow Valve Company | www.clowvalve.com |
| East Jordan Iron Works | www.ejiw.com |
| Kupferle Foundry Company | www.hydrants.com |
| Mueller Company | www.muellercompany.com |
| U.S. Pipe & Foundry Company | www.uspipe.com |
| Woodford Manufacturing | www.mmirp.com/pages/woodford.htm |