Glass Lily Pipe Spin Outflow and Inflow 13mm for 12/16mm Tube

• Glass transparency give superb appearance to your aquarium. Make an elegant curve line in your aquarium.
• Spin outflow pipe creates a circling flow of water inside its loop section, and slows the speed of water flow.
• 13mm diameter fit for external canister filter hose size of 1/2" (12/16mm). Compatible with Eheim, Tetra and other filters.
• They can be installed on the aquarium tank without using suction cups.
• Package included: 1x Lily pipe inflow, 1x Lily pipe spin outflow, 4x Suction cups.