Nature Aquarium Glass Pipe Set Nano Inflow & Nano Outflow with Surface Skimmer (13mm Nano)

Nature Aquarium nano glass filter pipe set with surface skimmer, includes:

• 1 x 13mm nano glass outflow pipe with integrated surface oil skimmer. 
• 1 x 13mm nano glass inflow pipe.
• fits 13mm outer diameter canister filter tubing of 1/2" (12/16mm).
• effectively clears the oil film on water's surface.
• highest quality sturdy glass craftsmanship