| Business | Phone |
| A Better Filter Svc 2003 Green Rock Ln, Indianapolis 46203 | (317) 353-0430 |
| Filter Services-Indianapolis 1550 Stadium Dr, Indianapolis 46202 | (317) 264-2123 |
| Filters Unlimited 68 N Gale St # G, Indianapolis 46201 | (317) 624-0537 |
| H & H Environmental Systems 55 S State Ave, Indianapolis 46201 | (317) 423-0555 |
| Indiana Filter Supply Inc 5850 Kopetsky Dr # F, Indianapolis 46217 | (317) 788-2897 |
| Worldwide Filters 754 N Sherman Dr # 213, Indianapolis 46201 | (317) 808-3719 |
| Tri Star Filtration Inc 5319 W 86th St, Indianapolis 46268 | (317) 337-0940 |
| Master Enterprises 4201 Millersville Rd, Indianapolis 46205 | (317) 545-3335 |