I just ordered a Kent Deluxe Maxxima 60 Hi-S 60 gpd, hopefully my psi is above 60. New house so new code, hopefully that means good water pressure because I do not want to buy an RO pump.
Ebay does have a bunch; used which may require new filters at $30+ a piece or new but I didn't know the make or how reputable they are. There are a lot of them on sale at F&S.
Poupon