| Business | Phone |
| Canney's Water Conditioning 3712 Miller Rd, Kalamazoo 49001 | (269) 343-2600 |
| Chemtreat Inc 5311 Colony Woods Dr, Kalamazoo 49009 | (269) 375-6776 |
| Culligan Water Conditioning 5066 N Sprinkle Rd, Kalamazoo 49004 | (269) 488-3788 |
| Drake Water Systems 738 Mabel St, Kalamazoo 49007 | (269) 372-4633 |
| Rainsoft Water Treatment Systs 616 Cherokee St, Kalamazoo 49006 | (269) 388-2239 |
| Peerless Inc Water Treatment 1701 E Vine St, Kalamazoo 49001 | (269) 344-6137 |
| Gordon Water System 618 E Crosstown Pkwy, Kalamazoo 49001 | (269) 637-1884 |
| Pulverdryer Usa 5541 King Hwy, Kalamazoo 49048 | (269) 552-5290 |
| Great Lakes Water Treatment 5928 E Michigan Ave, Kalamazoo 49048 | (269) 381-0210 |
| Hageman Water Conditioning 5169 Simmons St, Kalamazoo 49004 | (269) 349-1170 |