KEYOOL Transparent Glass CO2 Glass Tube U Shape Check Valve Suction Cup CO2 Diffuser Refinement Fish Tank

Color: Red/Black/White Material:Glass+Plastic Application: Aquarium, Fish tank, Water PlantBrand new and high quality Size (Approx.): Check Valve-Caliber 4mm/0.16in, Length 5.5cm/2.17in Feature: High efficiency of diffusing carbon dioxide. Easy to install and use, with no extra power required. CO2 Diffuser,which offer a healthy environment for your fish. Suitable for Plant Fertilizer Fish. Economy convenient package for a lot of aquatic hobbyist.

Package Includes: 1 x Glass CO2 Diffuser for Aquarium (Red/Black/White) 1 x Check for Valve 1 x Suction Cup 1 x U-shaped Glass Tube

Note: Light 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 +/-1-3 cm.