Features: brand new and high quality It creates a strong current in the aquarium. Suitable for nano mini aquarium for tank pool. Glass transparency give superb appearance to your aquarium. 3 sizes of 10mm, 13mm and 17mm to fit for the different size of canister filter tubings. for Eheim, Tetra and other filters. Can be installed on the aquarium without using a suction cup. Package includes 1piece lily pipe jet outflow. Specifications: Material: Glass Color: Transparent Size: S/for M/L S-Pipe Diameter Approx.1.0cm/0.39in, Total Height Approx.13cm/5.12in, Jet Port to Pipe Space Approx.5.5cm/2.17in M-Pipe Diameter Approx.1.3cm/0.51in, Total Height Approx.15cm/5.91in, Jet Port to Pipe Space Approx.6.3cm/2.48in L-Pipe Diameter Approx.1.7cm/0.67in, Total Height Approx.18cm/7.09in, Jet Port to Pipe Space Approx.7.5cm/2.95in Weight: Approx.200g Package Includes: 1 Piece Glass Jet Outflow Lily Pipe for Aquarium note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!