... generator for fish aquaculture,food industry ,swimming pool,spa ,waste water 10G air feeding ozone sterilizer for air or water ... treatment;Sewage treatment;Spring water, mineral water, SPA water;Waste gas/water treatment;Food and beverage processing;Refrigeration and fresh-keeping ... wheel.5. Air feed with auto-dryer, which saves gas feed cost.6. Easy maintenance, long service lifeControls:Voltmeter ...