Description: Brand new and high quality,great DIY enjoyment, perfect CO2 generator. Easily to set up,low cost and excellent quality.,can be used for a long time. Made of Aluminum alloy material, durable. An effective and efficient pressurized CO2 system,Creates a healthy underwater habitat for aquatic pets and plant. Add and control the amount of CO2 available to your and plants,add essential CO2 into your aquarium water. Easy to operate and designed,provide your aquarium plants an abundant CO2 environment for better growing. Specification: Material: Aluminum Alloy Size(LxD): Approx.19x4cm/7.48x1.57in A Pipe Length: Approx.40-48cm/15.75-18.90in B Pipe Length: Approx.40-45cm/15.75-17.72in Pipe Diameter: Approx.0.4cm/0.16in Note: pl notice the color of the product is random. Package Includes: Common Type Package: 1 Piece Carbon Dioxide Generator, 2 Pieces Suction Cups, 1 Piece Pipe Standard Type Package: 1 Piece Carbon Dioxide Generator, 2 Pieces Suction Cups, 1 Piece Pipe, 1 Piece Bubbler With Value Type Package: 1 Piece Carbon Dioxide Generator, 2 Pieces Suction Cups, 1 Piece Pipe, 1 Piece Bubbler , 1 Piece Solenoid Value Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.