APEC FILTER-SET-PH US MADE 90 GPD Replacement Filter Set for ULTIMATE Series Alkaline Reverse Osmosis Water Filter System Stage 1-3&6

Had RO system for about 20 years through a water systems service company that also serviced it annually. Decided to replace and install with a new system. Didn't know it was going to be so much more cost effective to replace and change out filters so easily by myself especially with the guidance from APEC telephone customer support. They gave me the confidenceb - Love my new system!

We installed the Apec Ultimate90 R0 unit shortly after we move into our new home. We have enjoyed the Apec RO systems in our home for the last 20 years or so. Once we installed the RO unit, we have never had to replace our coffee makers because of scaling problems.

Finally after 2-previous RO systems, I purchased the APEC RO-Perm system on 1/3/2018. I installed it in the basement using a 14-gallon storage tank. It is suppling 2-refrigerators and 2-sink faucets on the first floor. What a difference! I have it set up so when changing filters I can use a flush tank and still maintain RO water to the first floor. Replacing filters is a breeze! Thank you from a very satisfied and lifetime customer.

I am completely satisfied with my RO system and the same goes for my recent order of replacement filters and ice maker kit. They came nicely packaged with clear instructions. I replaced the filters and added the ice maker kit and it went very smoothly and I am very happy with the product. Thanks!

I live in Iowa where the nitrate levels are insane and we are ranked #2 in cancer rates. The APEC system makes our water safe from nitrates, micro plastics, forever chemicals, and every harmful thing that is in tap water. Even lead has been found in kiosks that sell bottled water! I feel confident knowing that our drinking and cooking water is completely safe! It tastes so clean and fresh that I drink way more water than I used to! I highly recommend.

I have been using the Apec Ultimate 90 and it's predecessor for years. I first purchased the system for my tropical fish who needed pure water. My fish were very happy and so was I as I loved the taste of such fresh water. Moving to my new home I upgraded to the ultimate 90 GPD. This model has a filter which allows for demineralization of the purified water. Now I am not only drinking pure water but it has more alkalinity and minerals it. It is a win win!! Thank you Apec for quality products at a reasonable price.

Having installed the 90 PH ROS about a year ago to address a kidney issue, the suggested time frame to change filters. The initial system install went well using the APEC tutorials. The filter change went easy as well. Simple easy drinking water! As I mentioned previously the RO system was suggested to provide water free of chlorine and other harmful effects. My kidney issue has remained stable over the past year. The RO system is “just what the doctor ordered.”

We have been using Apec water system and are very happy with the quality of the water. We use filtered water for drinking, cooking even for the steamer at work. It's an excellent product.

The filters have been installed for a month or so. I use the TDS Mini from Aped to check my RO water from the dispensing faucet. My TDS number is 131 or so after multiple tests and since install. This seems high, unless I am reading the meter wrong or something.

I received the broken top for filter 2 and 3, I wasn't able to replace the filters within timelines now ended up having a broken filters without even unsealed