DONGKER Water Inflow Outflow Tube, 16/22 Aquarium Hose Aquarium External Canister Filter Pipe for HW-603/HW-602/HW-302/303A B/402AB/403AB

Suitable For Inner Dia16mm/outer Dia 22mm Hoses,Suitable For Hoses With Inner Diameter of 16mm/outer Diameter of 22mm. Sturdy Suction Cup: Make Sure It Is Fixed on the Side of the Water Tank. Adjustable: Helps to Adjust the Direction of Water Flow. Rain Shower Type Effluent Circulation Increases Oxygen, Effective Water Circulation Increases the Oxygen Content in the Water. SHOP WITH CONFIDENCE: To Provide You With the Highest Quality Service, If You Have Any Question, Please Feel Free to Contact Us.We Will Provide After-sales Service Until You Are Satisfied.