AquaTru Replacement VOC Filter with ph+ Mineral Boost - Alkaline

In this review the AquaTru Replacement VOC Filter with ph+ Mineral Boost (Stage 4, Part AT2004) is judged as a targeted upgrade for AquaTru countertop and under sink systems. The bottom line: if you want purified water that also tastes like mineral-rich spring water and adds alkaline minerals, this filter delivers that change quickly and reliably. It is designed specifically for the AquaTru Classic, Connect and Under Sink models, and the review focuses on real-world performance, lifespan and the tangible benefit of added calcium and magnesium.

Key Features

• System compatibility: Specifically designed to fit AquaTru Classic, Classic Smart (Connect) and AquaTru Under Sink units, ensuring proper fit and function when used with the correct systems.
• Alkaline mineral boost: Adds healthy minerals such as calcium and magnesium to create instantly alkaline, mineralized water that tastes closer to mountain spring water.
• VOC and contaminant removal: Uses an activated carbon block certified to NSF standards to reduce inorganic compounds, prescription residues and common forever chemicals like PFOA and PFOS.
• Filter life: Rated to last one year or 600 gallons, whichever comes first, which makes replacement predictable for household maintenance schedules.
• Ready pairing: Works as the Stage 4 filter in the AquaTru reverse osmosis purification system, and should be used only with AquaTru replacement filters to maintain system performance.

Who It's For

This filter is best for households that already own an AquaTru Classic, AquaTru Connect (Classic Smart) countertop system or the AquaTru Under Sink model and want the added benefit of alkaline, mineralized water without buying a separate mineralizer. It suits people who prioritize removal of VOCs, PFOA and PFOS and who prefer the taste of mineral-rich water.

It is not for users of the AquaTru Carafe or those who need a universal replacement filter for other brands. If you do not have an AquaTru system, or if you want only basic carbon filtration without added minerals, look for a different stage or filter model.

Pros & Cons

Pros

• Creates alkaline, mineralized water with noticeable improvement in taste for those who prefer a spring-like profile.
• Removes a range of inorganic contaminants and certain forever chemicals thanks to an NSF-certified activated carbon block.
• Predictable one-year or 600-gallon service life simplifies maintenance planning.
• Designed to integrate directly with AquaTru countertop and under sink systems for reliable performance.

Cons

• Not compatible with the AquaTru Carafe, so buyers must confirm system model before purchasing.
• Only intended as Stage 4 in AquaTru systems, so it is not a complete filtration solution by itself.

Specifications

Part	Stage 4 replacement filter (AT2004)
Compatibility	AquaTru Classic, Connect (Classic Smart) and Under Sink models
Not compatible	AquaTru Carafe
Filter type	Activated carbon block with ph+ mineral boost
Removes	VOCs, inorganic compounds, PFOA and PFOS, prescription residues
Life	One year or 600 gallons

Our Verdict

The AquaTru Replacement VOC Filter with ph+ Mineral Boost is a smart choice for AquaTru owners who want cleaner water with added alkaline minerals and a spring-like taste. Its NSF-certified carbon block and predictable lifespan make it good value for households committed to the AquaTru reverse osmosis system; just confirm you are not using the AquaTru Carafe before buying.

Frequently Asked Questions

Is this filter compatible with the AquaTru Carafe?
No. Part AT2004 is not made for the AquaTru Carafe and is only for Classic, Connect and Under Sink units.

How long does the filter last?
The manufacturer rates the filter for one year or 600 gallons, whichever comes first.

What contaminants does the filter reduce?
The activated carbon block is certified to NSF standards and reduces VOCs, certain inorganic compounds, prescription residues and chemicals like PFOA and PFOS.