Fish For Filter Tube Aquarium Intake Outflow Tube External Canister Filters Accessories For Inner 16mm PipeFeatures:Suitable to work partner with Diameter 16mm tube.Keep good water circulation with different for play way.Water Inlet Tube Size: Total 43.5cm/17.12in.Rain Outlet Tube Size: 49cm 19.29in Specifications Color BlackWater Inlet Tube Size: Total 43.5cm/17.12inRain Outlet Tube Size: 49cm/19.29inSuitable for pipe with (inside diameter 16/ outside diameter 22)For 603/602/302/303/402AB / 403B 403AB filter barrelsPackage Includes:1 Set x Water Inlet Outlet Tube Note 1.Please allow 1-3cm 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!