AQUATEK CO2-Proof Tubing 16 Feet</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Our special CO2 Resistant Tubing loses less than 1% of CO2</li><li>3/16" Inner Diameter. Black color. Easy to hide. Great for indoor garden， hydroponics and modern aquariums</li><li>Kink-Free Design. Airline suction cup included</li><li>Fits all AQUATEK regulators</li><li>Safe for fresh or salt water environments</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/513KCMzhURL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/513KCMzhURL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/414vEwVQRPL.jpg' noproxy></br>