Do you need a durable fish tank device? If so, take a quick look at this fish tank refining device. Made of stainless steel materials, durable and . Unique design and craftsmanship popularity and practicality. Easy to remove, clean and easy to fill with water. Features -Color:Silver -Material:Stainless steel -Size:7.00X4.80X3.20cm/2.75X1.89X1.26in -Note: Suitable compatible with 4mm tube, only compatible with aquarium air pump - Widely used compatible with oxygenation in various aquariums, fish tanks. Suitable compatible with aquariums, especially aquatic plants, tropical fish and other ornamental and aquaculture ponds. - Compatible with a wide range of aquarium, making it a versatile accessory compatible with fish tank enthusiasts. - Good compatible with maintaining the health of your pet , make their daily life more happy. - With the simple structure, fish tank device is very easy and simple to use, save your efcompatible witht. - The more air goes into the water, the fish pets can live happy life in the aquarium tank. Package list: 3 Tank