Review on FZONE Aquarium Regulator Solenoid Standard by Jacki Beauchene

Solid build, great price and works well! In my opinion, mini gauges are not too small. When I first set them up I thought the solenoid was very noisy. It was "buzz". However, I later found that it had just loosened and needed tightening. Now he is silent. Keep in mind that this works best for side-opening CO2 tanks. Most small CO2 tanks (24 ounces or less) open at the top, so you'll have to put them on their side and find a way to keep them from rolling. Dick's Sporting Goods only fills CO2 tanks up to 24 oz. If you have a large tank, you will need to find a paint shop or weld shop to fill it up. So you have to decide whether you want the convenience of Dick refilling or the security of a vertical CO2 tank with this regulator. -1 star because it literally has no instructions. You'll have to google it somehow and find out.