Applied Membranes Inc Replacement Filter Set for Culligan AC-30 RO System - Includes RO Membrane, Carbon, Sediment and Post Filters

Seems to be working great!

Just what I needed

Works great good price

Great value and this isn opposed to be the 4 filters for the Culligan A-30 RO System but stage filter #3 was not the exact fit. My husband was able to trim the end piece to make it fit and work but it was not the exact match. Also, we need to drain the mail bottle and add air so if you have problems w pressure this fixes it! Watch a YouTube video about. Great price. It beat out DiscountFilters.

Parts are a tight fit. Coconut carbon filter has wrong connection. Useless

Very good quality at a very good price. Easy to install. Not the least expensive but worth the extra money based solely on the quality.

I’m disappointed in these. They fit perfectly and were easy to install. However, they are under-performing. I have a TDS meter to test the amount of total dissolved sediment in my water. These filters are taking less than 90% of the sediment out of our water, and that’s after I ran several gallons through the system to flush the new filters AND waited a whole week to make sure the new membrane was fully functioning. Our tap water averages 350ppm of sediment. With Culligan filters, our RO water registered below 20ppm. I tried another brand of filter and averaged below 35ppm (not great but at least 90 percent). But with THESE filters our RO water has 45-50ppm of sediment. Brand new filters should not function so poorly, and if this is how they perform when they are brand new I cannot expect them to last long. I guess you get what you pay for.UPDATE: after about 8 weeks of using these filters, my TDS readings started to rise and rapidly got above 100ppm. I decided to try replacing only the first filter which I believe is called the pre-sediment filter. It had turned brown and wrinkled after only 8 weeks of use. I replaced it with a different brand but left the carbon filter and membrane in place. After the system was flushed out I was happy to see my TDS numbers go down to the lower 30's and stay there! It's now been over 3 months and the TDS numbers are still good! I suspect the pre filter was the issue. The membrane and carbon filters seem to be working fine and they are the most expensive filters, so I will raise my star rating slightly.

After a different company sent two that looked like this filter system (same pic) were not the same and didn’t fit! these ones from this company fit correct.