Culligan AquaCleer AC-30 Reverse Osmosis System Compatible Replacement Cartridge, Filter, and Membrane - 4 Set

Why didn't I know about these sooner? I was paying Culligan an arm and a leg to maintain my RO until I learned it was easy to replace these myself. The filters fit my Culligan system just like the originals and it's not too complicated to install. Just watch a few YouTube videos and you'll be off and running, The water flow great with these filters, tastes great, and tests show they are doing a great job of filtering the water. So glad I learned about these.

I purchased these for my elderly neighbors' AC-30 RO unit. I was not sure how the originals were and if these would work. They are identical to the Culligan's at a much better price. They were easy to install. I replaced all 4 and my neighbor has been raving about how good his water tastes now (we have absolutely horrific water in our subdivision).

Easy to install and works great. Water quality is great and tastes so clean. We have well water and our reverse osmosis system is the final step we use for filtered water and it helps SO much compared to our taps without R.O. Will definitely buy these filters again in 6 months. Well worth it.

These reverse osmosis water system filters were the perfect replacement filters for my system. Easy to install and would recommend to others.

Why did you pick this product vs others?: Second time we purchased these filters. Fit great on my Culligan Reverse Osmosis System.

While these filters appear to be the same quality as the name brand filters, they simply do not filter well. I purchased a water test meter and tested my water after one year. It was still doing great at 7 ppm. I tested it again at two years and it was 12 ppm which is still good, but I decided to change to the new filters anyway. I then waited a week and tested the water. It was 67 ppm. I have tested a few times since and still get around 67 ppm. While it is an improvement from the 332 ppm that the incoming water tests at, it still is not in a range that is considered to be safe. The only posssible answer that I can come up with is that these are low quality filters.

Fits my elderly Culligan RO system perfectly. Takes a little time to install but very doable

Price was right and shipping was fast but I had an issue with the post-carbon filter leaking and greatly reduced water pressure at the Culligan tap. I did notice the membrane was a tad longer than the others but I'm not sure how or if it hinders proper function.