Thank you for your recent query regarding the use of a hose end diluter to dispense Maxicrop Seaweed Extract.
Most shop available diluters either dilute at too high a rate or are designed to dispense powders. As such they are not suitable for this use with Maxicrop.
You may like to consider an adjustable diluter such as the Agralan model which I have provided a link to below.
I wish you well in your endeavors