Model: CT-202, Color: White, Size: 12*7*6 cm, Capacity: 2x1.5 litres/minute. Power: 4 W, Pressure: 0.012MPa, Volt: 220-240 V, Frequency: 50 Hz. Suitable for aquarium tank size:100 Liters.Perfectly suitable for using at all kinds of aquarium, aquaculture oxygenation, spout decoration, etc., Aquarium Airline Tube: Material: silicone, Color: transparent, Length: 2 Meter, Inner Diameter: 3mm Outer Diameter: 5mm. The aquarium hose fit all standard outlets, including aquarium air pump, check valves, filtration system, air stones, air flow control levers, and aquarium ornaments. Safe for fish and good for fresh or salt water environments. Aquarium Air Stone: Material : Mineral, Plastic; Color : Grey; Size: Approx. 3.5*2cm(D*H).Suitable for inner diameter 4mm soft tube.With high temperature interring, the stones are sturdy and durable, have high dissolved oxygen rate and create even and tiny bubbles rather than a limited number of large ones. Before use, please immerse it in the water for 15 minutes.Suitable for aquarium, fish tank and hydroponics. Aquarium Control Valve: Material: Plastic, Two-Way Plastic Valve can be used as an in-line valve to control air flow from pump.Fits standard air line tubing aquarium and Co2 tubing with inner diameter about 3 mm. Package Includes: :1 x 2 way air pump, 1 Aquarium Air Stones(cylinder), 1 Aquarium controller, 2 Meter Aquarium tube