Package Dimensions:14.8 x 13.5 x 2.2 cm; 280 Grams Size:13cm Quantity:1 batteries required:No Item Weight:280 g welcome to my store , Hope you have a pleasant shopping trip Features:1.Note: It is suitable for 4mm/8mm inner diameter hose. It needs to be used with an aquarium oxygen pump. (Does not include trachea and oxygen pump)2.Durable Material: The gas pan stone is made of high-quality white steel jade and silicon carbide through high temperature sintering, which is strong and can be used for a long time.3.Good Dissolved Oxygen Effect: Large air outlet area, large air volume, uniform oxygen increase, fine bubble effect, large dissolved oxygen amount.Specifications:size:Diameter 10CM/4.0 inchx thickness 2CM/0.8inch;Diameter 13CM/5inchx thickness 2CM/0.8inch;Applicable: 4mm/8mm inner diameter hoseUses: The fish tank produces fine bubbles, increases the oxygen content in the water body, reduces the CO2 in the water body, and increases the PH valuePackage List:1 X Aquarium Oxygen DiffuserNotes:1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.2. Please allow 1-2cm slight dimension difference due to different manual measurement. Note: It Is Suitable For 4mm/8mm Inner Diameter Hose. It Needs to Be Used With An Aquarium Oxygen Pump. (Does Not Include Trachea and Oxygen Pump) Durable Material: The Gas Pan Stone Is Made of High-quality White Steel Jade and Silicon Carbide Through High Temperature Sintering, Which Is Strong and Can Be Used For A Long Time. Good Dissolved Oxygen Effect: Large Air Outlet Area, Large Air Volume, Uniform Oxygen Increase, Fine Bubble Effect, Large Dissolved Oxygen Amount. Applicable: Quiet and Undisturbed Work Operation. Suitable For Fish Ponds, Aquariums, Freshwater Tanks, Saltwater Aquariums, Etc. SHOP WITH CONFIDENCE: To provide you with the highest quality service, If you have any question, please feel free to contact us.We will provide after-sales service until you are satisfied. See more product details Note: It Is Suitable For 4mm/8mm Inner Diameter Hose. It Needs to Be Used With An Aquarium Oxygen Pump. (Does Not Include Trachea and Oxygen Pump) Durable Material: The Gas Pan Stone Is Made of High-quality White Steel Jade and Silicon Carbide Through High Temperature Sintering, Which Is Strong and Can Be Used For A Long Time. Good Dissolved Oxygen Effect: Large Air Outlet Area, Large Air Volume, Uniform Oxygen Increase, Fine Bubble Effect, Large Dissolved Oxygen Amount. Applicable: Quiet and Undisturbed Work Operation. Suitable For Fish Ponds, Aquariums, Freshwater Tanks, Saltwater Aquariums, Etc. SHOP WITH CONFIDENCE: To provide you with the highest quality service, If you have any question, please feel free to contact us.We will provide after-sales service until you are satisfied.