Watts Premier Water Filter Replacement Kit and RO Membrane - Complete

In this review the Watts Premier Water Filter Replacement Kit and RO membrane combo is judged as a practical option for owners of compatible under-sink reverse osmosis systems who want a straightforward, one-year replacement plan. The package pairs a 7-pack of replacement filters with a separate RO membrane so users get sediment prefilters, carbon blocks, a polishing post-filter and a membrane that reduces total dissolved solids and heavy metals. The biggest reason to buy is convenience: this single purchase delivers the routine replacements most systems need to restore taste, clarity and contaminant reduction.

Key Features

• Complete annual supply: The 7-pack covers routine prefilter and post-filter needs for a year so users do not need to buy separate cartridges every few months.
• Sediment protection: Two 5 micron sediment filters trap dirt, silt and rust to protect downstream membranes and improve water appearance.
• Chlorine and taste reduction: Four 5 micron carbon pre-filters reduce chlorine and other compounds that cause bad taste and odor before water reaches the membrane.
• Final polishing: A 10 in GAC inline post-filter provides a last-stage polish to improve drinking water taste after the storage tank.
• RO membrane performance: The included membrane reduces TDS, sodium and contaminants such as lead, chromium and arsenic to restore purified water quality.
• NSF certified components: Carbon block and membrane are NSF certified, offering third-party assurance of contaminant reduction.

Who It's For

This kit is best for homeowners with Watts Premier RO systems like the RO-TFM-5SV, WP-ST6DM, WP-5 or WP5-50 who want a single purchase that covers their regular filter schedule. It suits people who prefer changing all routine cartridges on a predictable interval and who value NSF certified components for drinking water safety.

Users with different RO models should check compatibility before buying, and those who only need a single replacement filter or a specialized membrane for unusually high TDS should look for single-item options instead of the bundled year kit.

Pros & Cons

Pros

• Good value for a year's worth of routine pre- and post-filters, reducing repeat purchases and shipping.
• Easy to install and remove filters make scheduled maintenance straightforward for DIY homeowners.
• Included RO membrane restores TDS reduction and tackles heavy metals for safer drinking water.

Cons

• Bundle is intended for specific Watts Premier systems, so compatibility must be confirmed before purchase.
• Replacement intervals require discipline: 7-pack filters every 6 months and membrane annually to maintain performance.

Specifications

Kit contents	Two 5 micron sediment, four 5 micron carbon blocks, one 10 in GAC post-filter, and one RO membrane
Compatible models	RO-TFM-5SV, WP-ST6DM, WP-5, WP5-50
Sediment filter rating	5 micron
Carbon pre-filter rating	5 micron carbon block
Post-filter type	10 in granular activated carbon (GAC)
RO membrane function	Reduces TDS, sodium and contaminants such as lead, chromium, arsenic
Recommended replacement	7-pack filters every 6 months; RO membrane once a year

Our Verdict

The Watts Premier replacement kit with membrane is a sensible, cost-effective choice for owners of compatible Watts RO systems who want predictable maintenance and NSF certified components. It eliminates the hassle of piecemeal purchases, restores water clarity and taste, and keeps contaminant reduction strong when filters and the membrane are replaced on the suggested schedule.

Frequently Asked Questions

How often should I change the filters?
Replace the 7-pack filters every 6 months and the RO membrane once a year for optimal performance.

Will these fit my Watts Premier RO system?
The kit is designed for systems such as RO-TFM-5SV, WP-ST6DM, WP-5 and WP5-50; verify compatibility with your model before purchase.

Do the filters improve taste and odor?
Yes, the carbon pre-filters and GAC post-filter reduce chlorine and improve taste and odor, while the membrane lowers TDS and contaminants.