Features: This check for valve is only suitable for CO2 equipment. Made of high quality stainless steel, it is not rusted and durable. Easy to install and use, simple and convenient. Prevent water from entering carbon dioxide. Do not use with air pumps and air compressors. Specifications: Material: Stainless steel Color: Silver Size: Length: app.4.7 for cm/1.85 in;Caliber: app.4 mm/0.16 in Package Includes: 1 x Aquarium check for valve note: 1. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
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