| Business | Phone |
| Aqua Clear 1057 W Philadelphia St, Ontario 91762 | (909) 467-4221 |
| Aqua Systems 1237 Doral Ct, Ontario 91761 | (909) 947-4686 |
| Aquatrac Instruments Inc 1957 E Cedar St, Ontario 91761 | (909) 476-2333 |
| Cool Water 1128 W Mission Blvd, Ontario 91762 | (909) 391-6323 |
| Culligan Water Conditioning 1925 Burgundy Pl, Ontario 91761 | (909) 629-5274 |
| Titan Water Technology Inc 2131 S Hellman Ave, Ontario 91761 | (909) 923-5883 |
| Us Filter 5100 Jurupa St, Ontario 91761 | (909) 974-2822 |
| Wateria 1363 E 4th St, Ontario 91764 | (909) 983-2399 |