With the regulator, you can adjust the amount of initially precisely and safelyThe bubble counter with thickened acrylic tube has improved corrosion resistance and longer service life, and plants can be powered optimally inand push beautifullyThe 2 screens allow you to read the parameters and you can assure if they are as you wishBe made of high quality aluminum alloy.Not only the simple design makes the installation easy, but also it makes your aquarium more beautiful The controller can be used with our wall mounted timer to make automatic time delay switch