?Do you want a high-quality CO2 diffuser for your fish tank? You cannot miss this. Made of Solid PC£¬ as crystal as glass. 4 in 1 product with the following functions: diffuser£¬ u-shaped tube£¬ bubble counter£¬ check vavle. With it£¬ you will never worry about bubbles and can enjoy the happiness of DIY CO2 generation.<br><br><strong>Features:</strong><br>Solid PC as crystal as glass£¬ unbreakable to use.<br><strong>Diffuser: </strong>apply ceramic material to create more stable and fine bubbles.<br><strong>U-shaped Tube:</strong> no bending needed£¬ beautiful &amp; convenient to use.<br><strong>Bubble Counting: </strong>no need of extra counter£¬ clear to see and calculate bubbles.<br><strong>Inside Check Vavle:</strong> avoid water-returning easily.<br><strong>Double sealed diffuser</strong>£¬ dismountable to clean£¬ leak-proof.<br><br><strong>Specifications:</strong><br>Color: Transparent<br>Material: Solid PC<br>Item Size: 4 * 2.5 * 4cm / 1.58 * 0.98 * 1.58in<br>Item Weight: 22.5g / 0.79oz<br>Package Size: 15 * 11.5 * 4cm / 5.91 * 4.53 * 1.58in<br>Package Weight: 46.5g / 1.64oz<br><br><strong>Package List:</strong><br>1 * CO2 Diffuser Set