U-shaped connector made of high-quality stainless steel for carbon dioxide supply tube in an aquarium with glass thickness up to 2 cm. The package also contains 4 suction cups.

Provides nice alignment for the tube to pass over the edge of the glass from the outside to the inside of the tank.

• For 4/6mm tubes
• Size SMALL: For aquarium with 1 cm glass thickness
• Size MEDIUM: For aquarium with 1.5 cm glass thickness
• Size LARGE: For aquarium with 2 cm glass thickness