About This Ultra Quiet: Made of ABS thickening engineering plastics, super silent aquarium air pump. Soft rubber foot pads, further palliation for noise. Long Service Life: Manually adjustable air volume, won’t cause shakes and electric field fluctuation, much safer than electronic adjustment, lower failure rate. Aquarium Air Pump with 2 outlets, dual hose fish tank air pump, 3W air pump fit for fish tanks from 10 to 100 gallon. Unique Design: The air intake cotton is replaceable, it can filter the impurities in the air and extend the service life of the air pump, also come with 1 more replacement. Complete Accessories: Comes with everything you need, includes: Return Valve*2, Air Stone*2,Air Tube (2 x 4.9ft)*2, Suction Cup*2, Air Regulating Valve*2, T-Connector*1, Air Intake Cotton*1. Original quality, professional manufacturer. Overview Color : Grey-White Brand : HITOP Material : Plastic Item Weight : 0.4 Kilograms Product Dimensions : 5.1'L x 2.8'W x 2.2'H