Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: What is it?
Document: Total of 4 units exchanged because GE would not send faulty parts, replacements, so I had to keep returning it.
This is a 3 stage filter with an RO membrane that is spec'd out to work with your standard tap's pressure; no booster needed. Not needing the booster saves money and eases installation but it does impact the maximum daily throughput. With that said, it's a light duty, but you get good quality RO water.
It reduces the many industrial wastes that end up in our water supply on accident and even those that are added on purpose, like fluoride, so it serves it's purpose well.I copied the full list of pollutants it reduces from another review that I read which helped me make this purchase:Reverse Osmosis is a process of filtering a liquid, such as water through a semi-permeable membrane (filter) which will transmit the liquid but will impede most solids.
I have a friend that had purchased the same product which they were very happy with and recommended it to us .. I did have a problem with the product delievered to me , but  Plumbers  Outpost took care of the problem qiuckly to our satisfaction. I plan on in the future to do business with them again .
A common problem with this system is that the vent plugs and needs to be blown out with air. It has clogged twice in a year and each time it seeps water out of the vent hole under the top of the faucet, flooding your countertop and floor. There is no warning and you don't see it coming until you step in the puddle. It's poorly designed. I'm throwing it out and getting something more reliable. I had a Whirlpool in by previous home for over five years without a failure.
Answer: no