RO/DI Unit

Hello, I am new to this and I have heard a lot about the greatness of the ro/di units. I have a 75 gallon tank with a box of salt that makes 500 gallons of saltwater. (just wanted you to know) I am looking for a ro/di unit that is, A Low Price,

High Performance,

Long Lasting,

Easy to Use,

Any input will be greatly welcome thanks!:blob: