Bubble size is related to back pressure of the pump. The smaller the bubbles, the more power you will need from your pump. For small bubble, wood, glass, or ceramic airstones used on protein skimmers, select a more powerful pump than is usually rated for your tank size. The unique, parallel arrangement of the electrical cord and output permits easy installation in highly restricted areas. Light duty, versatile pumps.
Silent motor is protected from overheating.
Output tube is not rigidly connected and can be twisted to allow installation without twisting any flexible tubing that may be connected. The output may be connected to both rigid and flexible tubes with inside diameter of 12 millimeters. Suction cup support is provided for a more stable and silent operation Equipped with a flow-adjusting feature to fit the pump to different applications. Fully adjustable outlet and aeration. Silent motor is protected from overheating.