1Ozonizer can help you clean water and remove algae, green and yellow water, and fishy smell. 25gear knobtype adjustment function, you can periodically cycle fivegear adjustment, easily control the time. 3The aquarium ozone machine only decomposes harmful substances in the water, does not harm fish, and purifies the water quality. 4The ozone generator is made of high-quality ABS material, which is durable and has a long service life. 5Wide range of applications, suitable for home, greenhouse, farm, industrial shed, public place and other places. Condition: 100% Brand New Item Type: Ozone MachineMaterial: ABSColor: As Pictures Shown Size: Approx. 16 x 8cm / 6.3 x 3.1inRated Power: 6WOxygen Capacity: 120MGSuitable for Pet Type: Fish TankFunction:1. Active release, high concentration of active oxygen.2. Destruction, decomposition, catalysis, source of pollutants.3. Decompose and reduce to oxygen to continuously maintain the water quality in the tank. 1 x Ozone Machine1 x Hose