APEC RO Replacement Filters Complete Filter Set for ULTIMATE RO-Hi model, and RO-90 and RO-PERM Models With 3/8"D Tubing Quick Dispense Upgrade (Stages 1-5)

Have had dimishing returns on the filter system

I first put my reverse osmosis system in about 7 years ago. For the first 4 or 5 years it worked great, replace the filters once a year, replace the others every 3 years. For the past 2 and a half to 3 years I'm having to replace the filters at least twice yearly. I believe this has to do with my town's water which is notoriously "brown" but the cost of the filters is now outweighing the cost of getting the 5 gallon bottles from a 3rd party. The convenience of it is still really good and I loved it for the first 4 years or so and that's why I still give it 4 stars. But I would like to see the cost of the filters come down, it adds too much to the lifetime cost of the system, even when replacing less frequently.

Direct replacement

These filters where a direct replacement for my RO HI system. Easy install. I recommend buying the tool, the tool comes with the orings needed.

Tubing Trouble

I somehow mis-ordered the “complete” set with 3/8 tubing. You graciously replaced (stage 5) with 3/4 tubing which I appreciated. A good product is made better with good service which I have happily experienced with APEC.