This item qualifies for FREE shipping to the contiguous U.S. Shipping to Alaska or Hawaii? Contact us for a custom shipping quote—we’re here to help! If you are running a high-tech planted tank, getting your carbon gas to actually dissolve into the water column instead of floating straight to the surface and wasting away is absolutely crucial. The Twinstar Acrylic CO₂ Diffuser is famous for its specialized, precision-engineered ceramic membrane packed with microscopic nano-holes. This membrane vaporizes raw gas into a super-fine, cloud-like mist that distributes effortlessly across your aquarium plants. Key Features & Benefits Specialized micro-hole ceramic membrane technology vaporizes gas into an ultra-fine mist for rapid and efficient plant absorption. The heavy-duty acrylic construction is completely shatterproof, providing vast safety improvements over fragile, easy-to-snap glass alternatives. An ultra-clear, transparent body blends seamlessly into your background, keeping the focal point entirely on your aquascape. Technical Specifications Size Diameter Tank Size Small 12mm 5-10 Gallons Medium 17mm 10-30 Gallons Large 23mm 30+ Gallons What's in the Box? 1x Twinstar Acrylic CO₂ Diffuser (Choose Small, Medium, or Large size)