20pcs 4mm 2 Way Clear Plastic Aquarium Air Hose Connector

Product Name : Type I Aquarium Air Valve;Material : Plastic Overall Size(Approx): 27 x 7 x 7mm/ 1.06" x 0.27" x 0.27" (L*HxW) Simple design for easy use, the air valve can be connected to aquarium tube. 2 Way Aquarium Air Distributor Air Valve and Air Line Connector for 4mm Inner Diameter Soft Air Tube. Helps increase oxygen and keep air fresh, creating a healthy environment for your fish.