RO Replacement Filter Set for RO-90 and RO-PERM Models, Stages 1 to 5

Shipped and sold by APEC Water Systems
$127.95
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$10 Star Money for $100
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Product details

Web ID: 18875616

APEC Ultimate 5-stage filter set, made in USA, offers top-quality components for long-lasting RO systems. Pre-filters last 12+ months, membrane and post-carbon filters 3-5 years, ensuring fewer changes and high-performance filtration. Compatible with various 50-90 GPD RO systems.

  • Product Features

    • Includes(1) Sediment,(2) Carbon block filters,(1) Dow Filmtec Membrane and (1) Inline carbon filter
    • Filmtec 90 GPD membrane is individually lab tested to guarantee the highest rejection rate
    • Certified to remove up to 99% of all contaminants for the best drinking water quality possible
    • APEC Ultimate high capacity 5-stage complete filter set is USA made and designed to last 2x longer
    • 30-Day Return Guarantee
    • Made in USA

  • Shipping & Returns

    • This item qualifies for Free Shipping with minimum purchase! exclusions & details
    • Orders will not ship in Macy’s packaging.
    • This item may not be shipped to Alaska, American Samoa, Guam, Hawaii, Marshall Islands, U.S. Virgin Islands, Puerto Rico, Palau, or the Pacific Islands.
    • California and Minnesota customers call 1-800-289-6229 for Free Shipping information.
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Ratings & Reviews

Here's what customers think
  • Customers praise the system for producing pure, great-tasting water with consistently low TDS readings, eliminating bottled water purchases.
  • Many report original filters and membranes lasting four to seven years, with some systems reliably performing for over twenty years.
  • Reviewers find filter replacement straightforward and user-friendly, typically completed in under two hours with clear instructions and twist-on design.
  • Most customers enjoy crystal-clear ice and significant cost savings, driving strong loyalty and repeat purchases of replacement sets.
  • A few encountered defective filters or minor leaking issues, and some desire lower pricing, but these concerns remain minimal overall.
AI-generated summary from 92 customers reviews.
4.7/5

92 star ratings & reviews

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92 reviewssorted by Newest

Theresa H.
12 days ago

Convenient easy way to keep

Convenient easy way to keep up on your filter changes

Customer review from www.apecwater.com

Michael V.
14 days ago

Safe Drinking and cooking water

We get our water from a deep well. Nevertheless, we feel safer having a APEC RO system under out kitchen sink. Inexpensive, and easy to maintain filter changes. Hookups are a snap, off and on with no leaking. I recommend APEC RO. My daughters have one and my sister recommended I should have an APEC RO.

Customer review from www.apecwater.com

Aaron C.
15 days ago

Good Value for Full Filter/Membrane Replacement

We have had our APEC RO system for 4 years and I changed out all of the filters and the membrane when our flow dropped off. Very easy swap on all 5 elements and a good price when purchased as a kit. The filter/membrane swap did not help our flow, so the membrane probably would last 5+ years in our application. We have a 10 micron filter on our main water line and a water softener, so our system sees reasonably good water. The root cause of our flow problem was the pressure tank had lost its air pre-charge. I purged all of the water out of the pressure tank, charged it with about 6 psi of air, and let the system re-fill. Our RO water pressure and flow is as good or better than new now.

Customer review from www.apecwater.com

Paul K.
19 days ago

Pure water, reasonable cost

We enjoy having the convenience of the RO 90 system giving us pure water without the hassle of buying bottled water. It also provides pure water for our refrigerator ice maker. I believe it gives us a savings of not having to buy bottled water. We are very satisfied with the system.

Customer review from www.apecwater.com

LESBIA H.
1 month ago

We have had multiple RO

We have had multiple RO systems from APEX. No issues with the systems or getting parts. Very happy to recommend them!

Customer review from www.apecwater.com

Kent B.
3 months ago

They work - clean water

Simple review: the filters and membrane work, we have clean water.

Customer review from www.apecwater.com

Marc V.
3 months ago

Thes replacmemts renew my RO system

Getting and installing this set of filters from APEC made my RO system work like new.

Customer review from www.apecwater.com

Dan J.
4 months ago

Faucet runs out of pressure quickly

I am still having pressure issues. Do you have any ideas?

Customer review from www.apecwater.com