Description For those passionate about maintaining their aquarium, our diy co2 diffuser bottle cover offers a long-lasting construction that supports the needs of both beginners and experienced users. Ideal for aquariums, its gas sealing capability guarantees a stable co2 supply, enhancing the beauty and health of your aquatic environment.-aquarium supply Features -Color:Beige -Material:ABS -Size:3.30X3.30X3.00cm/1.30X1.30X1.18in -Gas retention excellence CO2 generator bottle cap: designed to minimize co2 loss, ensuring maximum efficiency and prolonged usage for your diy co2 generator-aquarium plants system supplies -High-pressure durability CO2 generator bottle cap: constructed to withstand high-pressure conditions, ensuring the safety and reliability of your co2 system-diy co2 diffuser cap -Quick and simple setup CO2 generator bottle cap: features an intuitive design for fast installation, saving time and effort during assembly-diy co2 generator bottle cover -Aquarium-friendly design: suitable for use in aquarium co2 systems, helping to maintain healthy plant growth-replaceable co2 covers -Long-term reliability CO2 generator bottle cap: made from materials to provide consistent performance over time, reducing the need for replacements-aquarium accessory