Quiet to unleash! This air pump is known for its quietness. The air volume can be adjusted when the dial is turned to make this pump very easy to use. Aquarium SSPP-3S (air volume dial adjustable), 17.7 - 23.6 inches (45 - 60 cm) aquarium air pump with bonus bonus water core. SSPP-3S (air volume dial adjustable). Features: This is a representative air pump that is said to be quiet. The dial allows you to adjust the amount of air, and the specially designed sound-silent chamber smoothes the air and eliminates unpleasant noise, and is made to be quieter up to 1/3 of the conventional model (compared to our company). All models come with a ring to hang the hook, and you can even increase the silence by hanging it. Uses ozone compatible diagram. Replacement parts are shaped to replace the whole unit, making it easy to replace. Compatible aquarium size: 17.7 - 23.6 inches (45 - 60 cm); Product size: Approx. W 3.1 x D 6.1 x H 2.0 inches (8 x 15.5 x 5 cm); Product weight: 10.2 oz (293 g); Maximum discharge capacity: 2,500 cc/ 60 yen use; Turn it to air volume Adjustable Connect the air tube of the filter to the outlet of the main unit. Please install the main unit above the aquarium. Plug the plug of the main unit into an outlet. Note: Specifications may be altered without prior notice in order to make improvements. Acrylic Joint Clear Set of 4 Types (Total of 4 Pieces) Product Contents: Acrylic Joint Clear (0.2 inch (6 mm) Silicone/0.2 inch (6 mm) Silicone), Compatible Tubes: Outer Diameter 0.2 inch (6 mm) Silicone Tube (one side), Outer Diameter 0.2 inch (6 mm) Pressure Resistant Tube (one side), Acrylic Joint Clear (6 mm) Compatible tube: outer diameter 6 Pressure resistant tube (both sides); Acrylic joint clear (0.2 inch (6 mm) pressure resistance/0.1 inch (3 mm) pressure resistance); Compatible tubes: outer diameter 0.2 inch (6 mm) pressure resistant tube (one side); Outer diameter 0.1 inch (3 mm) (one side); Product size (approx.) Diameter: 0.8 inch (7 mm) Quantity: 1 mm) (21 mm) (21 mm) (4 mm) Material: Acrylic How to use for connecting each compatible tubes. If the tube is not properly installed, heating it with hot water or similar to it will become soft and easy to wear. Note: When installing or removing the tube, please handle with caution as this product may be damaged if overloaded.