5 Way CO2 Splitter for Solenoid and Regulator for long-lasting durability and dependability With this splitter, you can connect up to five CO2 diffusers/supplies from a single CO2 cylinder Each outlet is equipped with an individual needle valve allowing precise regulation of CO2 flow Easy setup, no modification required to your CO2 regulator Split your CO2 supply from one source to five outputs. Easy to install, requiring no modification to the regulator. No need to purchase multiple regulators and cylinders. Accurately adjust flow rate for each output using accurate needle valve. Using a splitter on your regulator you can split a single CO2 source to five separate outputs. For example, if you need to power multiple diffusers or have more than one aquarium. A splitter saves the cost of purchasing and maintaining more regulators and CO2 cylinders. Easy to install; simply screws onto your existing regulator needle valve. Supplied with short and long extension to ensure the splitter assembly is clear of the regulator body or pressure gauges. Unscrew compression collar from needle valve or regulator. Place small O-ring over needle valve nipple. Locate the extension provided with the splitter set. Check there is an O-ring at the end of the extension. The O-ring should be seated at the bottom of the thread. Screw the extension end that has the O-ring onto needle valve. Locate the splitter assembly and check there is a small and large O-ring deployed on the male thread. Screw the splitter onto the extension and tighten fully. Adjust flow of CO2 for each output using the needle valves.