Dual membrane flow restrictor question

I currently have a 75 GPD system and am planning on adding a second membrane to increase production and reduce waste water.



My question is, will I need a new flow restrictor based on the 150 GPD production or will my current 75 GPD restrictor be able to be used? It seems like the kits I have seen don't include a new flow restrictor, which makes me think that you don't need to replace it.



Thanks for any input!!