| Member Company | Company Description | Phone |
Link |
| Bio-Microbics, Inc. |
Onsite Wastewater Treatment Products | 800.753.3278 Bio-Microbics |
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| Aquatest, Inc. |
The NIBBLER | 800.221.3159 Aquatest, Inc. |
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| Berg Vault Company | Offers a full line of on-site septic system components, from septic tanks to gravel-less drainfield chambers | 360.424.4999 Peggy Schultz |
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| Bio-Microbics, Inc. | Onsite Wastewater Treatment Products | 800.753.3278 Bio-Microbics |
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| Delta Environmental | Total Onsite Wastewater Solutions | 360.736.5218 Jeannie Yackley Goode & Assoc. |
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| Geoflow | Onsite Drip Products | 800.828.3388 Geoflow |
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| H.D. Fowler Company | Onsite Wastewater Product Supplier | 425.746.8400 H.D. Fowler |
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| Infilitrator Systems, Inc. | QUICK4 PLUS STD Chambers | 888.237.4434 Adam Johnson 866.511.6071 Jay Homan |
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| Jet, Inc. | Advanced Wastewater Treatment | 800.321.6960 Jet, Inc. |
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| Matzke Sales, Inc. | Representative for Numerous Manufactures of Onsite Wasterwater Products | 253.872.2029 Matzke Company |
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| Netafim | Onsite Drip Dispersal System | 800.323.4350 Matzke Company |
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| NuWater, by Enviro-Flo, Inc. | Advanced Treatment Systems | 360.687.7668 Nathan Ek Ek Engineering |
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| Orenco, Inc. | AdvanTex Treatment Systems | 800.348.9843 Orenco, Inc. |
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| Polylok, Inc. | One Stop Shop for Onsite Wastewater Products | 877.765.9565 Polylok |
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| Premier Plastics, Inc. | Gravity Dosing with FLOUT | 800.661.4473 Premier Plastics |
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| RepCo Sales Agency | Manufacturer representative for several onsite equipment manufacturers | 503.877.3726 RepCo Sales |
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| Salcor, Inc. | UV Disinfection | 760.731.0745 Salcor, Inc. |
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| Tuff Tiger | Drip Dispersal Products | 866.770.7785 Tuff Tiger |
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| Watercolor Management, Inc. | WOSSA Endorsed Liability and Property Insurance |
256.260.0412 Jennifer Fronk Watercolor Mgmt. |