uxcell Rubber Aquarium Pipe Air Curtain Bubble, 35.4-Inch Long, Black Air Curtain Bubble as filter for aquarium Product Name : Aquarium Air Curtain Bubble; Material : Rubber Pipe Diameter(Approx.) : 1cm/0.39"; Pipe Length : 90cm/35.4" Inlet Connector Inner Dia. : 2.4mm/0.09"; Inlet Connector Outside Dia. : 4.7mm/0.19" Color : Black; Net Weight : 111g