Color: TransparentMaterial: Plastic ceramic glass. Shape of the glass size size: Approx.4 * 2cm Extreme ceramic microbubble plate. The non-return valve protects the gas system and the equipment from the air pump against Damage due to siphon. The description This article is a simple and practical CO2 generator system that is specially designed for aquariums. It helps promote growing plants, easy and safe to set up. With specialized pressure gauge, the safety zone and the scale can be clearly viewed. This bottle cap is very well adapted to be the accessory of the CO2 DIY system that the size corresponds to the common plastic bottle. The complete combo of CO2 DIY for aquarium planted. Features Color: Transparent Material: Plastic and glass and ceramic. Including the plastic control value, the U-shaped glass pipe, the glass CO2 diffuser and the suction cup. Plate of Extra fine ceramic microbubble diffusion. The check valve protects the gas system and equipment from the air pump against
