| Business | Phone |
| Filter Service Intl 1934 S Link Ave, Springfield 65804 | (417) 883-1366 |
| World Filter 450 South Ave # E, Springfield 65806 | (417) 865-0669 |
| Tam-Mar Industries 897 W Farm Road 84, Springfield 65803 | (417) 833-0555 |
| New Haven Filter Co 3525 E Kearney St, Springfield 65803 | (417) 831-4363 |