Nắp van đậy bình nước phát tán khi CO2

Specifications: Aquarium bottle cap for DIY live plants carbon dioxide diffuser air generator system. Easy set up, simply, nano, excellent design. Attached with high quality plastic "O" ring inside of the cap to prevent missing the carbon dioxide. This bottle cap is very suitable to be DIY carbon dioxide system's accessory that the size fits common PET plastic bottle. Type: Aquarium Bottle Cap Material: ABS Plastic Color: White Features: Useful, Easy to Connect, Fish Tank Accessories The Connect Tube Head Inner Diameter: 4mm/0.16" (Approx.) The Connect Tube Head Outer Diameter: 6mm/0.24" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Aquarium Bottle Cap #Aquariums #Bottle #BottleCap #Cap #CO2Equipment #CO2Systems #FishAquarium #FishTank #Generator #PetSupplies