| Business | Phone |
| Yorkshire Plumbing Supply 8205 Centreville Rd, Manassas 20111 | (703) 368-9226 |
| Parts Unlimited Inc 8633 Phoenix Dr, Manassas 20110 | (703) 257-7774 |
| Noland Co 10512 Balls Ford Rd, Manassas 20109 | (703) 369-5531 |
| J & H Aitcheson 10106 Residency Rd, Manassas 20110 | (703) 361-4114 |