RO with 2.5X40 membranes

[KReinisch]

So my dad just found a 130 gph procon pump and motor that he had laying around. It has the 3/8 ports. I haven't found any 4x40 that have 3/8s ports but the 2.5x40's do. Is there anyone out there who built an RO with 2.5x40 membranes.

[Sunny Knoll Farm]

I'm running a (4) 2.5x 40 membrane system. I didn't build the system but purchased two used units from a calf feed processor. What would you like to know?

[mkoehler79]

Go with 4x40...Same to similar price for membrane housing and WAY better performance even with the 130 gph pump.