Seachem Glass CO2 U-Tube Joint

Seachem Glass CO2 U-Tube Joint (10mm)

The Seachem Glass U-Tube Joint is a borosilicate glass connector used to join two sections of CO2 airline tubing at a U-shaped bend, routing CO2 lines neatly over the aquarium rim or around obstructions without kinking. Kinked CO2 tubing creates pressure irregularities that cause fluctuating bubble rates and inconsistent CO2 delivery. The glass U-tube eliminates this issue entirely and creates a clean, visible bend point in the CO2 line. Fits standard 10mm (4/6mm) CO2 airline tubing used in most planted tank CO2 setups.

Key Features

• Borosilicate glass — chemically inert and kink-free
• Routes CO2 tubing over tank rim or around obstacles without kinking
• Prevents pressure irregularities from bent tubing
• Fits standard 10mm CO2 airline tubing
• Clean, minimal look for planted aquarium aesthetics