Aquarium Equipment - Brand Generic - 2 Set 13 Oil Film Remover Water Protein Skimmer + Outlet Lily Hose Highlights Brand Generic 2 Set 13 Oil Film Remover Water Protein Skimmer Oil + Outlet Lily Hose Description: Inlet diameter: 13, The inlet and outlet filter hose designed to make the water flow ideal for plant growth. It makes an elegant curved line in the box-shaped aquarium, the transparency makes your aquarium look great. The adjustable flow is fast and efficient. Effectively remove aquarium and aquarium surface oil.Provide a cool and healthy environment for fish to breathe. specification: Material: glass Color: clear Size - 13: Inlet: 13mm; Outlet: 56mm; Height: 180mm; Inner size: 50mm; Suitable aquarium: 30-90cm Package includes: 2 pcs aquarium surface skimmer 2 pcs Lili outlet pipe Note: Since the size above is measured by hand, the size of the actual item may be slightly different from above size. Due to lighting effects, monitor settings etc. slight difference in the color tone of the pictures and the actual item.