RO Pure RO Replacement Filter 5-Pack - Reliable Sediment and Carbon

In this review the focus is on a practical replacement kit for under-sink reverse osmosis systems. The five-pack contains two 5 micron sediment filters, two 5 micron carbon pre-filters and one 5 micron carbon post-filter designed to work with the RO Pure and Pure Plus lines; the single biggest reason to buy is convenience combined with routine maintenance that preserves membrane life and improves taste. For anyone running a compatible RO Pure system who wants a straightforward, push-button change kit that tackles sediment and chlorine taste, this pack simplifies upkeep without special tools.

Key Features

• Five filter set: Includes two sediment, two carbon pre-filters and one carbon post-filter to complete a standard RO service cycle.
• 5 micron filtration: The sediment and carbon elements catch dirt, silt and rust while providing effective chlorine reduction to protect the membrane.
• Compatibility: Built to fit RO Pure (WP531411, WP531407) and Pure Plus (WP531417, WP531517) systems so replacements match original specifications.
• Easy replacement: Push-button release design lets users swap filters without turning off the water source, speeding routine maintenance.
• Maintenance schedule: Recommended swap intervals keep performance steady by changing pre-filters every six months and the post-carbon every 12 months.

Who It's For

This kit is best for homeowners and renters who already own a compatible RO Pure or Pure Plus under-sink reverse osmosis system and want to maintain water quality and membrane longevity. It suits anyone who prefers replacing predictable, modular cartridges on a regular schedule and values easier cartridge changes that minimize plumbing hassle.

It is not for users with the Watts 1/4 turn Kwik Change reverse osmosis system, since the pack is not compatible with that design, nor is it an appropriate choice for people who need specialized micron ratings or additional adsorption stages beyond standard sediment and carbon.

Pros & Cons

Pros

• Complete set covers a full routine service, so all common pre- and post-filters are replaced at once.
• 5 micron sediment and carbon media reduce visible particulates and chlorine taste, improving water flavor before the membrane.
• Push-button release makes maintenance faster and requires no system shutoff, lowering user friction.
• Pre-sized 11 in cartridges match the factory dimensions for compatible RO Pure systems.

Cons

• Not compatible with the Watts 1/4 turn Kwik Change system, so buyers must verify model fit before ordering.
• Only standard sediment and carbon stages are included; systems needing additional specialty filters will require separate purchases.

Specifications

Brand	Watts Premier
Contents	Five filters: 2 sediment, 2 carbon pre-filter, 1 carbon post-filter
Filter length	11 in
Micron rating	5 micron
Compatible models	RO Pure WP531411, WP531407; Pure Plus WP531417, WP531517
Replacement interval	Sediment and carbon pre-filters: 6 months; post-carbon: 12 months

Our Verdict

The five-pack is a sensible, cost-effective maintenance kit for owners of RO Pure and Pure Plus systems who want to protect their reverse osmosis membrane and improve tap water taste. With standard 5 micron sediment and carbon stages plus an easy push-button replacement, it removes common barriers to timely filter changes and represents good value for routine under-sink care.

Frequently Asked Questions

Will these filters fit my system?
They fit RO Pure and Pure Plus models listed in the product notes but will not fit the Watts 1/4 turn Kwik Change system, so confirm your model number before purchase.

How often should I replace the cartridges?
Replace sediment and carbon pre-filters approximately every 6 months and the carbon post-filter every 12 months for steady performance.

Do I need tools or to shut off water to change them?
The push-button release design is intended to allow cartridge changes without shutting off the water source or requiring special tools.