Feature:1. The air output is fine and the dissolution rate is high, more practical.2. The main body made of imported fine workmanship acrylic material, glittering and translucent, dazzling and eye-catching.3. Refiner using the excellent nano MBKT technology manufacturing, bring good refinement effect.4. With independent bubble counting functionat the same time, perfect combination withrefining.5. Red chip need less pressure, especially easy to outlet air, saving more materials.Specification:Condition: 100% Brand NewItem Type: Aquarium RefinerMaterial: AcrylicColor: As Pictures ShownL Suitable Aquarium: Approx.120-150cm/47.24-59.06inchM Suitable Aquarium: Approx. 80-100cm/31.50-39.37inchS Suitable Aquarium: Approx. 40-60cm/15.75-23.62inch.Package List:1 x Aquarium Refiner 1 x Suction CupNote:If there are large bubbles, it may be that the CO2 diffuser slice has not been fully immersed, and there will be no large bubbles after being placed in water for more than 2 hours. You can soak the CO2 diffuser slice for 2 hours before use.