Aquarium skimmer Lily 12 Outlet : Adjustable outflow direction, steering adjustment from below, 1mm spacing net is easy to filter and isolate contaminant, prevent inhalation and shrimp Never rust, never rust, moisturize With oil data processing tool, oil program floating position is automatically made available on the platform Come with Clear Acrylic Pipe Holder, Aquarium Installation Solution for 12mm/16mm tubes, outlet can be rotated degrees, pagoda interface, prevent falling out Specification: Material: stal stainless steel, : silver 12 outlet inlet: total outlet length 20cm/7,87inch, total inlet length 30cm/11,81inch 16 Inlet outlet: total outlet length 25cm/9,84inch, total inlet length 34cm/13,39inch 12 outlet 16: total outlet length 20cm/7,87inch, total inlet length 30cm/11,81inch 12 Oil film: total outlet length 20cm/7,87inch, total inlet length 30cm/inch 16 Oil film: total outlet length 25cm/9,84inch, total inlet length 34cm/13,39inch 12 Outlet 16 Oil film: total outlet length 20cm/7,87inch, total inlet length 34cm/13,39inch 12 Adjustable oil film: total outlet length 20cm/7,87inch, total inlet length 30cm/11,81inch 16 Adjustable oil film: total outlet length 25cm/9,84inch, total inlet length 34cm/13,39inch 12 outlet 16 Oil film available: total outlet length 25cm/9,84inch, total inlet length 34cm/13,39inch contains: 1 set of cantilever lily tube