Glass CO2 Diffuser - Mr. Aqua

  Specifications A wide ceramic disc creates fine CO2 mist to allow for more efficient CO2 injection.  Features a compact and durable design. 3 small suction cups included for Narrow and Angled models. 1 small and 1 large suction cup included for Wide model. Each product includes a glass J tube (15cm H x 2.5cm W) to hang over the edge of your rimless aquarium tank. Narrow and angled styles have a 15mm diameter diffuser disc (good for tanks up to 20 gallons). Wide style has a 26mm diameter diffuser disc (good for tanks up to 30 gallons).