Fish tank filter pipe inlet and outlet water filter accessories characteristic ~Made of 304 stainless steel material, durable and durable! ~The surface has undergone polishing treatment, exquisite and beautiful! ~The water inlet adopts a microporous design to prevent small fish and shrimp from being sucked into the filter barrel when the filter is in operation! ~Installing using aluminum alloy estimation is convenient and simple! ~The K port of the water pipe adopts a double tower design, making it difficult for the water pipe to fall off during installation! Features: Import and export design: The rod can be extended to allow perfect use of fish tanks of different heights extension rods can be purchased according to the height of the fish tank, wireless extension design Design of Oil Removal Film Module for Water Outlet Design of Oil Removal Film Module for Water Inlet Explanation: 12mm: Link inner diameter 12mm water pipe 16mm: Link inner diameter 16mm water pipe 20mm: Link inner diameter 20mm water pipe Size: detailed as shown in the picture Color: gray white Material: 304 stainless steel Attention, due to manual measurement, the size error of the extension rod is 1-3CM!