I have a small under kitchen sink RO storage tank that I don't need, if you can use it can have it. I have a 3/8" valve though as it was part of the Culligan RO system as they use 3/8" instead of 1/4".
I believe the tank is 2-gallon but could be larger, not sure!
I believe the tank is 2-gallon but could be larger, not sure!