Jardin Plastic 20-Way O2 Splitter Valve Air Flow Controller for Aquarium, Beige Product Name : 20 Way O2 Valve; Material : Plastic Total Size : 300 x 60mm/11.8" x 2.4"(L x W); Inlet Connector Diameter(Approx.) : 9mm/0.35" Each Branch Outer Diameter(Approx.) : 5.8mm/0.23"; Color : Beige Weight : 42g Package Included : 1x O2 Valve