[Solved] Gredia R-R401 Flow Meter

I am trying to find a code that would allow me to connect the GREDIA R-R401 flow meter to my arduino and calculate the flow in ounce per min, quarts per min, ect....

Without the use of libraries if possible.

How many pulses per ounce?

Not sure.. how to find out? Photo below of flow meter, if that helps..
Thanks

If you can be bothered to look at the photo, you might find a wealth of information.