Titan Controls 702710 Carbon Dioxide Gas Regulator for 120-volt Controllers and Timers

Regardless of what the instructions say, you must use Teflon (plumber's) tape if you do not want leaks. You also must use a wrench to tighten the bolt 1/2-1 turn past hand tight. If you properly installed the flowmeter, then the tank should not be leaking or emptying until the solenoid is plugged in and both the main valve to the tank and the smaller knob are turned to the left. The CO2 rushes fairly rapidly; keep the smaller knob no more than a turn until the flowmeter reads 2 (I don't know the units.) Get a CO2 detector!! Aim for 1400 ppm in your grow room. CO2 will enter your living areas, assuming your grow room is indoors. Turn your tank off by mid-evening or use a timer. Concentrations above 2000 ppm will be noticeable to your brain, and your plants won't like it either. Lethal CO2 potentially at 5000 ppm. Get a CO2 detector!! Unless your 20 lb. tank is near empty, you should no way need a flowmeter reading of more than 5, even if you are venting to outdoors. There are lots of plastic components. Only grab ahold of the brass parts, or you'll probably break something.

i bought 4 of these regulators and use them with 4 Saturn 6 controllers. After close to a year 3 of them are working flawlessly and one developed a small leak in the auto shut off. I contacted the warranty dept (Hawthorne) and got an immediate response. To my surprise they replaced the entire unit and they covered the shipping costs! I cant say enough about the outstanding customer service I have received from Hawthorne on behalf of Titan Controls.

After buying a cheap manetee regulator and returning it 3 times and wasteing 3 bottles of co2 I learned my lesson and bought the titan. It’s been 6 months and no issues and very easily adjusted unlike others.

Set this up on a 8 hour cycle for my planted tank. Can adjust down to well under 1 bpm if desired. It is a little touchy to set that low but once set it stays solid.Loved it in the grow tent and love it for the planted tank!

A bit expensive but it does exactly what I need it to do. Set it once and leave it.