Description Ultra-accurate pressure gauge display. Standard interface nut, super sealing effect. High quality trim valve for easy removal and cleaning. The Aquarium CO2 Regulator will always inject the right amount of CO2 at the right time to keep your plants growing. High quality alloy material and has a longer service life. Robust and compact construction. The large display makes it easy to read your settings to make sure they’re always where you want them. Perfect CO2 regulator to create the best growing conditions for your aquarium plants. Intake Link: Side G5/8 Threaded Button Output rate: 2.5 mL/min Vent link: M10*1 Inlet pressure: 0-2000psi