Brio MIB400PKRM 4-Stage RO Mineralizing Replacement Filter Set

Mineralizing: Brio MIB400PKRM is a four-stage replacement filter set for compatible Brio reverse-osmosis coolers, with a mineralization stage intended to add calcium, magnesium, and potassium back to treated water. Its fit is the key buying check, since the listing names CLPOU520UVRO4 and CLPOU720UVRO4, while another compatibility field lists only CLPOU720UVRO4.

At a glance

Four-stage setup comprises sediment, pre-carbon, reverse-osmosis, and mineralization filters, with post-carbon included in the final stage according to the listing.
Manufacturer claims the mineralization stage adds calcium, magnesium, and potassium to RO-purified water.
Quick-change installation is described as taking a few seconds.
Filter life is claimed to be up to 12 months depending on frequency of use.

Price

$188.35Save 22%

Reference price: ~~$239.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Combines sediment and carbon pre-filtration, an RO filter, and mineralization in one replacement set.
The mineralization stage is a distinct option for buyers who want minerals added back after reverse-osmosis treatment.
Quick-change design may simplify routine replacement.

Technical specifications

5 specifications

Identity
Brand	Brio
Model	MIB400PKRM

Dimensions and installation
Dimensions listed	11.25"D x 3.5"W x 3.5"H
Weight listed	2 pounds

Materials
Material listed	Plastic

What to know before buying

Listing details to confirm

Compatibility claims are inconsistent: the feature text names CLPOU520UVRO4 and CLPOU720UVRO4, while the compatible-model field lists only CLPOU720UVRO4. The title describes a four-stage filter set, but the explicit included-components field says three water filters while feature text lists four filter types. Confirm fit and exact kit contents for the selected listing before purchase. The up-to-12-month life is usage-dependent.

What’s in the box

Three water filtersCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Owners of a listed compatible Brio reverse-osmosis cooler needing a replacement filter set.
Buyers who want a mineralization stage after RO treatment.

Less suited to

Owners of a different cooler model unless compatibility is confirmed.
Buyers seeking a standalone reverse-osmosis system rather than replacement filters.

Brio MIB400PKRM 4-Stage RO Mineralizing Replacement Filter Set · photo 2 — Additional product photo 2

Customer reviews on Amazon

4 / 5 · 7 ratings

5 stars46%46%
4 stars39%39%
3 stars0%0%
2 stars0%0%
1 star15%15%

Only aggregate ratings are provided, with a small rating sample and a divided distribution: many ratings are positive, while a portion are one-star. These figures do not identify the reason for either response or establish performance. Buyers should weigh them alongside the compatibility and kit-content uncertainties, which matter when replacing filters for a particular cooler.

Frequently asked questions

Which Brio cooler models is this filter set listed for?

Feature text names CLPOU520UVRO4 and CLPOU720UVRO4, but a separate compatible-model field names only CLPOU720UVRO4. Confirm compatibility with your cooler before ordering.

What stages does the set include?

The feature text lists sediment, pre-carbon, reverse-osmosis, and mineralization filters, and says the mineralization stage includes post-carbon. An included-components field instead says three water filters, so verify the contents of the selected listing.

How long are the filters claimed to last?

The manufacturer says they last up to 12 months depending on frequency of use. This is a conditional claim, not a fixed replacement interval for every household.

What minerals does the mineralization stage add?

The listing names calcium, magnesium, and potassium. It describes these as ions returned to RO-purified water.