4 in 1 Aquarium CO2 Diffuser Carbon Dioxide Atomizer Diffuser

Description Features: This product has excellent refinement effect. The appearance is as transparent as glass, but the advantage over glass refiner is: 1. the thin piece can be replaced; 2. PC material strong not fragile (not fragile acrylic); 3. built-in anti reverse function, effectively prevent the water reflux in the fish tank. Specification: Size: 11.5cm x 14.5cm Colour: Transparent Material: PC Package Contents: 1 x CO2 diffuser Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.