| Representative | Address | City | State | Zipcode | Telephone |
| JOHNSTONE SUPPLY/BELLEVUE/#301 | 13200 SE 30TH ST | BELLEVUE | WA | 98005 | 425-641-5732 |
| THERMAL SUPPLY/BELLEVUE WA | 13230 BEL-RED RD | BELLEVUE | WA | 98005 | 425-451-2755 |
| JOHNSTONE SUPPLY/BOTHELL/#80 | 11715 N CREEK PKWY S #101 | BOTHELL | WA | 98011 | 425-487-3939 |
| THERMAL SUPPLY/KENT WA | 7405 S 212 ST #106 | KENT | WA | 98032 | 253-872-8963 |
| REFN SUPP DIST/SEATTLE WA/(SEA) | 625 S INDUSTRIAL WAY | SEATTLE | WA | 98108 | 206-623-8005 |
| THERMAL SUPPLY/SEATTLE WA | 717 S LANDER | SEATTLE | WA | 98134 | 206-624-4590 |
| JOHNSTONE SUPPLY/SEATTLE/#03 | 18205 ANDOVER PARK WEST | SEATTLE | WA | 98188 | 206-575-0755 |
| JOHNSTONE SUPPLY/EVERETT/#315 | 3414-A CALIFORNIA ST | EVERETT | WA | 98201 | 425-293-0660 |
| THERMAL SUPPLY/EVERETT WA | 3330 MC DOUGALL AVE | EVERETT | WA | 98201 | 425-257-3191 |
| THERMAL SUPPLY/BELLINGHAM WA | 3550 MERIDIAN ST #'A' | BELLINGHAM | WA | 98225 | 360-733-7417 |
| REFN SUPP DIST/BELLINGHAM WA/(BEL) | 3924 IRON GATE RD UNIT 'A' | BELLINGHAM | WA | 98226 | 360-671-7407 |
| JOHNSTONE SUPPLY/BREMERTON/#208 | 250 WILKES AVE | BREMERTON | WA | 98312 | 360-373-2500 |
| THERMAL SUPPLY/FIFE WA | 4200-C INDUSTRY DR E | FIFE | WA | 98424 | 253-926-1807 |
| REFN SUPP DIST/TACOMA WA/(TAC) | 2519 PACIFIC HIGHWAY E STE 'G' | TACOMA | WA | 98424 | 253-922-2422 |
| THERMAL SUPPLY/TURNWATER WA | 715 78TH AVE SW SUITE 'B' | TURNWATER | WA | 98501 | 360-412-5271 |
| THERMAL SUPPLY/VANCOUVER WA | 11012 NE 39TH ST | VANCOUVER | WA | 98682 | 360-253-9797 |
| JOHNSTONE SUPPLY/YAKIMA/#31 | 101 N 1ST AVE | YAKIMA | WA | 98902 | 509-248-8300 |
| THERMAL SUPPLY/YAKIMA WA | 202 W SPRUCE | YAKIMA | WA | 98902 | 509-452-9155 |
| JOHNSTONE SUPPLY/SPOKANE/#04 | E1212 FRONT | SPOKANE | WA | 99202 | 509-533-9911 |
| THERMAL SUPPPLY/SPOKANE WA | 4124 E MAIN STREET | SPOKANE | WA | 99202 | 509-535-7000 |
| REFN SUPP DIST/SPOKANE WA/(SPK) | 212 E PACIFIC | SPOKANE | WA | 99202 | 509-838-0593 |
| JOHNSTONE SUPPLY/KENNEWICK/#170 | 6502 A WEST DESCHUTES AVE | KENNEWICK | WA | 99336 | 509-783-5200 |
| THERMAL SUPPLY/KENNEWICK | 6423 W DESCHUTES SUITE 'A' | KENNEWICK | WA | 99336 | 509-783-0140 |