Glass Lily Pipe Inlet with Surface Skimmer and Type A Outlet Inlet / Inflow Glass lily Pipe set Inlet / inflow with skimmer Glass transparency give superb appearance to your aquarium. Deliver water from the aquarium to filter with appropriate water flow speed. Skimmer lily Inflow pipe will auto adjust with the water level. Surface skimmer effectively remove the dirty film on top of the water. Water surface flow rate can be adjusted by rotating the bottom part Make an elegant curve line in the aquarium. Outlet / Outflow Type A Glass lily Pipe outlet / Outflow Glass transparency give superb appearance to your aquarium. Deliver clean water from the filter with appropriate water flow speed. Make an elegant curve line in the aquarium. These Outlet / Outflow Pipe is made by glass. This is transparency so it does NOT disturb the appearance of aquarium and it is suitable for any aquarium layouts. Special shape use for aeration as well when you put and fix half of Out Pipe from the water surface. You can prevent deficiency of oxygen during the night. Note :- The floating part and the unit for adjusting the ratio between surface extraction and intake in the lower part are made of highly transparent and durable acrylic