YZM Reverse Osmosis RO Flush Kit Valve for 200Gallon/300Gallon RO System Flow Restrictor, 1/4" Tube OD Ports. (650CC,200Gallon/300Gallon)

Worked great and easy to swap over restrictors if you decided to go bigger membrane.

I purchased a R/O unit and was wondering how to maximize the life of the R/O filter read I needed a flush kit then found out for a 100 GPD R/O filter the restrictor should be a 800. I only had a 450 that came with the filter unit. My ppm was at a 2 to 5 with my unit now its 0 (I also have a DI) after I changed out to the flush kit with the correct flow restrictor. Has changed waste water ratio from 3:1 to about 5:! that's the trade off.

Just what I needed

After rebuilding my RO unit, with new filters, shut-off valve, and installing the new Flush Kit valve, I noticed no water moving through the unit. With process of elimination, I found that the sticker on the flow restrictor was put on backwards. The arrow was pointing in the wrong direction. A mistake that caused me a big headache. Hope this information helps others.

you have 50/50 chance of getting the water flow right as they could not afford to give you instructions.

Attach this to my RO/DI unit for my fish tank and went from making 60 gallons a day to about five. Not sure how exactly this is supposed to be better than the previous unit I owned which was one mechanism in line but I would have to compare this as an old man with BPH dribbling...

purchased as back upworks great

Works ax it should no problem