| Business | Phone |
| Aqua-Fresh Drinking Water Syst 4635 Ruffner St, San Diego 92111 | (858) 569-9360 |
| Arrow Service Co 10222 Rookwood Dr, San Diego 92131 | (619) 281-3531 |
| Discount Water Purifiers San Diego 92129 | (858) 484-8055 |
| A Pure Water Of California San Diego 92108 | (619) 220-0734 |
| Allstar Water Systems 4186 Sorrento Valley Blvd # M, San Diego 92121 | (858) 452-9800 |
| Rayne Drinking Water & Soft 4635 Ruffner St, San Diego 92111 | (858) 487-2000 |
| Pure Water Plus 4 2939 Alta View Dr, San Diego 92139 | (619) 479-7739 |
| Culligan Water 7575 Carroll Rd, San Diego 92121 | (760) 436-8865 |