| Business | Phone |
| Water Tech Industries 13110 Ne Airport Way # 3, Portland 97230 | (503) 254-8412 |
| Amway Products & Svc Distr Portland 97210 | (503) 274-6062 |
| Treatment Equipment Co 4504 Sw Hewett Blvd, Portland 97221 | (503) 292-4690 |
| Backflow Management Inc 17752 Ne San Rafael St, Portland 97230 | (503) 255-1619 |
| Balancing Service Inc 3907 N Interstate Ave, Portland 97227 | (503) 286-5728 |
| Chemetek Portland 97232 | (503) 282-5084 |
| Enviro Guard 4306 Se Ellis St, Portland 97206 | (503) 775-7675 |
| Generex 10761 N Lombard St, Portland 97203 | (503) 286-1666 |
| Multi-Pure Drinking Water Sys 5205 N Depauw St, Portland 97203 | (503) 735-0642 |
| Multi-Pure Drinking Water Sys 619 Sw Hume St, Portland 97219 | (503) 246-2592 |
| Generx Corp Po Box 25428, Portland 97298 | (503) 297-3459 |
| N W Water Technology 12020 Sw Barnes Rd, Portland 97225 | (503) 469-8324 |
| Heaven Sent Fresh Air Water 13873 Sw Ashbury Ln, Portland 97223 | (503) 579-3124 |