| Business | Phone |
| Best Water Conditioning 13623 Paradise Dr, Hagerstown 21742 | (301) 790-1200 |
| Culligan Water Conditioning 501 Marilyn Ave, Hagerstown 21740 | (301) 662-6099 |
| Culligan Water Conditioning 501 Maryland Ave, Hagerstown 21740 | (301) 797-0311 |
| Mr. Water Professional Water Treatment 411 Guilford Ave, Hagerstown 21740 | (301) 416-8331 |