ISTA Co2 Pressure Regulator Magnetic Valve Bubble Counter - Adjustable Solenoid

Co2 simplified. Not a compensated endorsement. I purchased the regulator to add co2 to small nano planted aquarium info is sketchy at best on internet. If you live in the US all paintball tanks that can be inexpensively filled at sporting good store have pin valve that don't work with European/ Asian built regulators the easiest way to use a regulator like this is with a inner thread paintball adapter https://www.amazon.com/paintball-Inner-Thread-Tank-Valve/dp/B06XRWH9Z2/ref=mp_s_a_1_4?dchild=1&keywords=inner+thread+paintball+tank+adapter&psc=1&qid=1571524014&sr=8-4# in line between the tank and regulator. Doing it this way will allow you to still fill your tank with factory pin valve for 5 bucks at any dicks sporting goods, and any paintball shop. If you try to change out the pin valve on the tank itself it is next to impossible to find a place to coviently fill. Save your time and frustration I tried the other valves,,they won't fill them. The inner thread paintball valve ships from China and took a month to receive as I watch my plants wither in wait. Once put together with a fluval disc diffuser and silicone airline tubing, a smaller digital timer it finally works great see pic.

Oh yes,