Eachine1 Aquarium Three Ways Filter Air Check Valve For Fish Tank

Feature: Air filter supplies clean air to aquarium. Adjustable and accurate air control. The flow of the air pump can from one into three ways. The outlet air standard size for air line tubing aquarium (4 mm). Fits all standard aquariums. Suitable for fresh or saltwater. Built-in anti-siphon check valve protects air pump against water damage. Product Attributes: Material: Plastic Color: Transparent and Black Quantity: 1 Pcs Size: 5.5x10.5cm/2.17x4.13inch(W x H) Package Include: 1 x Three Ways Filter Air Check Valve Note: 1.Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand. Make sure you don't mind before you bid. 2.Please allow 1-5mm differences due to manual measurement.