... support Lower cost & better effect 40g/h Ozone water sterilization machine with water cooling Feature:1 Outer case is made of ... sterilization, long-life design4 air-source and oxygen source one machine, the customer can use on demand Useful: 1, the laboratory ... Also we can made you the 20g, 50g,100g ozone machine, the machines are customized! Welcome your inquiries!