Coralife Pure-Flo II RO 50 gpd 4-stage, with tds metter,shut off valve kit and float valve - $50 (need to change prefilter Cartridge $4 at DPA)
Kent Marine AquaDose 5 gal - $15
both in very good shape
I’ve been using my 3 stage Pure-Flo for about 10 years now. it was a 50 gpd, but i upgraded it to a 75 gpd. could even go to 100 or 150 gpd. alls it takes is a higher output replacement RO membrane, and the coresponding Restricting Orifice to match. low cost and simple upgrade, in case anyone interested wanted a higher output unit. How old is the current membrane Rosti? they generally need replacing anyway after 2-3 years. Someone could end up with a real good unit for less than new.
membrane 1/10, resin 5/10 from thatfishplace