CO2 Tubing Connector — T-Splitter

This CO2-resistant acrylic T-splitter allows a single CO2 regulator output to be divided between two separate delivery points — for example, supplying two aquariums from one cylinder, or feeding a diffuser and an inline check valve simultaneously. The T-splitter is machined from CO2-proof acrylic and features three standard 4mm barbed fittings, providing a gas-tight connection to CO2-resistant airline tubing. When splitting CO2 between two tanks, ensure each branch has its own individual needle valve or flow adjuster to control the rate to each destination independently. A simple and low-cost accessory that adds flexibility to an existing CO2 setup without requiring additional regulator outlets.