Alexapure water filter review: what the Pro’s lab report shows, and what no certifier lists

Every gravity filter below has a certifier listing for at least one contaminant and a button to the seller. The Alexapure Pro has none for reduction.

On October 14, 2026 the Venture was $199 and the Scout $175, against $279.99 for the Alexapure. The Culligan filters cost more per gallon: they’re rated for 50 gallons each, so a gallon a day costs about $382 a year. You pay for the listing. Full rankings are in the best gravity water filters, and the BOROUX review covers the stainless model with the lowest filter cost.

Alexapure is sold by My Patriot Supply, and IAPMO lists its maker as Ready Alliance Group at the same Salt Lake City address. The current Pro is the second generation, on sale since September 22, 2026. By the brand, it doubles the flow, needs no priming and has 2.5-gallon chambers instead of 2.25. Adapters let old and new filters fit either generation.

Prices are from My Patriot Supply on October 14, 2026. Alexapure says the Pro filter is made in the USA, in its own plant. The pitcher’s claims for lead, chlorine, cadmium, mercury and microplastics are the brand’s too: I found no listing for it. Pitchers with listings are in the best water filter pitchers. Wirecutter (October 2025) puts the Alexapure Pro in a group with the Propur Big and Zen Water that “share similar claims, price, and lack of certifications”.

Alexapure links to a Substance Reduction Test Report from every Pro page: report SRT 0826, version 1.1, dated August 21, 2026, made for Alexapure by BCS Laboratories and IAPMO R&T, run to the methods of NSF/ANSI 42, 53 and 401. That is a test the brand ordered. A certification is different: the certifier lists the model by name in its public database. I read the report and searched NSF, IAPMO and WQA on October 15, 2026.

Two things stand out. In this table, lead, arsenic, PFAS and fluoride were measured once, after 2.5 gallons, one fill of a new filter. Chlorine and chloramine were followed to 200 gallons and the VOC stand-in to 240. A first-fill number shows how a fresh filter starts, not how it does at gallon 150. And sodium went up by half, which matters if you watch salt.

IAPMO R&T, named on the report, is also a certifier. Its database lists Alexapure’s maker for one thing only:

NSF/ANSI/CAN 372 checks the lead content of the parts that touch water. It says nothing about what the filter takes out. The contaminants or other substances removed or reduced by this water treatment device are not necessarily in your water.

Fluoride is the reason many people pick a gravity filter over a pitcher, so it gets its own section. In the Gen 2 report, fluoride fell from 2,020 to an average of 340 ppb after 2.5 gallons, with the two units at 300 and 380. That is 83.2%, and it was not measured later in the filter’s life.

Water Filter Guru sent tap water through the first-generation Pro to a Tap Score lab (review updated February 26, 2026). Lead, chloroform and aluminum dropped below detection. Fluoride rose from 0.1 to 0.3 ppm, and calcium (84%), magnesium (81%) and strontium (41%) went up too. They think the rise was likely temporary and said they’d retest. They also cite a 97.6% fluoride figure from Alexapure’s earlier claims, higher than the 83.2% in the new report.

No gravity filter on this site has a certifier listing for fluoride. If fluoride is the reason you’re buying, the systems certified for it are in the best fluoride water filters. A water test tells you whether your tap has more than a trace first.

Alexapure rates each Pro filter for 200 gallons and says to replace it when the flow drops a lot. That is about 0.65 a gallon at 129.99 on October 14, 2026, or 0.60 at Amazon’s 119.95 on October 15, 2026.

Flow is the trade-off. My Patriot Supply gives 1.67 gallons an hour for one Gen 2 filter. Water Filter Guru timed the older Pro at 1 gallon an hour. You can add filters, up to four: by the brand, two filters double the flow and the gallons before a change, and four give four times as much, at four times the filter price.

Third-party filters “for Alexapure Pro” sell on Amazon for a fraction of the price. They aren’t in Alexapure’s report, and I found no listing for them either.

My Patriot Supply shows 4.8 out of 5 from 2,797 reviews on October 14, 2026. Its note says reviews before September 22, 2026 are for the original Pro and filters, so nearly all of them describe the older model.

On Amazon on October 15, 2026, the Pro system had 4.4 out of 5 from 732 ratings and the replacement filter 4.5 from 1,029, with 8% one-star on each. Taste is the main praise: 107 of 118 mentions positive. The complaints are about the filter: 30 of 45 mentions of filter durability are negative, along with 39 of 61 on value for money, and 29 of 50 on the system’s filtration speed. Rust comes up 31 times, 17 of them negative. Amazon’s summary says some owners find a filter works for only about two months.

There is no warranty against defects. My Patriot Supply’s Disaster Replacement Limited Warranty replaces products bought directly from mypatriotsupply.com that a flood, wildfire, tornado, earthquake, landslide, tsunami or hurricane destroys. To activate it you opt in to their marketing texts or call them, and you claim within 30 days of the damage. It covers only orders from mypatriotsupply.com, so an Amazon purchase isn’t covered.

Returns are accepted within 30 days only for unopened, unused products. You pay return shipping, and the original shipping isn’t refunded. Once you open the box to try the filter, it can’t go back.

The Pro and pitcher pages both say the products aren’t sold to customers in California. The pages don’t give a reason.

The report itself warns not to use the Pro on water that is microbiologically unsafe or of unknown quality without testing and disinfection. Alexapure’s own Q&A adds boil-water or disinfection guidance for water known or suspected to be unsafe. If a health condition is your reason to buy, ask your doctor, and see our health disclaimer. Other filter types are compared in our water filter guide.