| Business | Phone |
| American Filtration 601 Lily St, Corpus Christi 78408 | (361) 882-9443 |
| Vil-Co Filter & Supply Po Box 81381, Corpus Christi 78468 | (361) 225-0937 |
| Walter Johnson Svc 10208 Leopard St, Corpus Christi 78410 | (361) 242-2703 |
| Walter Johnson Svc 2218 Ayers St, Corpus Christi 78404 | (361) 815-3261 |
| Beard & Assoc 710 Buffalo St 413, Corpus Christi 78401 | (361) 882-3323 |
| Bill Spitzer & Assoc 3349 Cresthill Dr, Corpus Christi 78415 | (361) 241-4440 |
| South Texas Filter & Supply Co 5602 Old Brownsville Rd, Corpus Christi 78417 | (361) 289-2222 |
| Enterprise Filters Inc Corpus Christi 78409 | (361) 289-5909 |
| Gulf Coast Filter & Supply Inc 4654 Baldwin Blvd, Corpus Christi 78408 | (361) 884-2299 |