Hey, come on! What we particularly recommend you is this New High-quality CO2 Diffuser White which will not let you down! Made of high-quality material and with fine workmanship, this CO2 diffuser is rather practical and durable in use. Suitable for fish bowl and fish tank, it could effectively diffuser the CO2, which could ensure the vitality of fish. Besides, with small size and light wieght, this CO2 diffuser is very easy to install and use. Never miss it!<!--Features --><p>FEATURES</p><UL class=p_f><LI>New and never used</LI><LI>Made of high quality material, durable in use</LI><LI>Practical and convenient to use</LI><LI>Suitable for fish bowl and fish tank</LI><LI>Reusable and easy to keep clean</LI><LI>Combined with a cupula, easy to install</LI></UL><!--Specifications --><p>Specifications</p><UL><LI>Condition: New</LI><LI>Material: Plastic</LI><LI>Color: White</LI><LI>Diameter: Big Hole: 0.79in / 2.0cm<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Small Hole: 0.14in / 0.35cm</LI><LI>Dimensions: (2.68 x 1.18)" / (6.8 x 3.0)cm (L x W)</LI><LI>Weight: 0.42 oz / 12 g</LI></UL><!--Package Includes --><p>Package Includes</p><UL><LI>1 x CO2 Diffuser</LI></UL><!--Extra Info --><!--produts_compatibility -->