Aquarium Stainless Steel Inlet Outlet Skimmer Pipe SetThe inlet and outlet pipes suitable for all type of external canister filter. It comes with acrylic holder for safety of your tank. Stylish, modern and elegant, best suit in all type of aquarium. Made by sturdy 304 stainless steel, against rust and corrosion (Notes: Pipes should be cleaned before used in your aquarium tank).Product Specification:Surface Skimmer Inlet SetSize: -12mm (Suitable for 12mm ID/16mmOD Hose)-16mm (Suitable for 16mm ID/22mmOD Hose) Material: Stainless Steel-Set included - 1x stainless steel inflow with skimmer, 1x stainless steel lily pipe outflow, 2x acrylic holder (Prevent the surface skimmer pipe from falling off). -Selection size based on canister filter inlet/outlet size.