"Filtro de agua 703-b
Lower concern; activated carbon filters unlikely to contain PFAS.
Standard activated carbon and ion-exchange media don't inherently contain PFAS. No explicit PFAS disclosure; material suggests lower risk than coated cookware.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Activated carbon and ion exchange resin filter cartridge
Lab data
No public lab test
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What "Filtro de agua 703-b is made of, ingredients and materials
The 703-B uses a two-stage cartridge, activated carbon (removes chlorine, taste, odor) and ion-exchange resin (softens water by removing dissolved minerals). Both are inert media that do not leach into water under normal use conditions. Activated carbon is widely accepted in drinking-water treatment and does not release particles or chemicals into filtered water when manufactured to potable-water standards.
What’s concerning
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Bacterial growth in filter housing or cartridge
Activated carbon and ion-exchange resin can harbor microbes if the pitcher is not rinsed regularly or if cartridges are left in stagnant water for extended periods. Risk is low with proper maintenance (weekly cleaning, cartridge replacement per label).
Exhausted media bypass or channeling
If a cartridge is not replaced on schedule, water may bypass the media entirely or pass through degraded zones, reducing filtration. This is a performance issue rather than a direct contamination hazard but can result in unfiltered contaminants in output water.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Leaching from plastic pitcher housing
Pitchers typically use polypropylene (PP) housings, which do not leach BPA or phthalates under cold-water conditions. No public reports of contamination from pitcher plastic exist for this model or brand.
Heavy metals
Activated carbon and ion-exchange resins from major manufacturers meet drinking-water purity standards and do not introduce lead, cadmium, or other heavy metals if sourced and manufactured properly. No evidence of noncompliance by exists in public records.
Source, FDA ↗The full breakdown
The brand's record and disclosure
The brand is a subsidiary of Pentair, a major water-treatment company. The brand does not publicly disclose material sourcing, manufacturing standards, or third-party certifications (NSF, WQA) for the 703-B cartridge on widely accessible product pages. No recalls or documented safety incidents specific to this model appear in public databases. The brand's silence on PFAS removal claims aligns with the fact that activated carbon alone does not reliably remove PFAS without specific media formulation.
How it compares in its category
Activated-carbon filters are the most common household option and carry lower contamination risk than older charcoal or unspecified media. The 703-B is a pitcher-style filter, which avoids installation issues that can create bacterial biofilm in under-sink or faucet-mounted systems if not maintained. Ion-exchange cartridges are standard in water softeners and pitcher filters; they do not introduce heavy metals or leachables if replaced on schedule.
If you buy it
Replace the cartridge every 40 gallons or per manufacturer instructions; exhausted resin or carbon cannot filter effectively and may harbor bacteria. Store unopened cartridges in a cool, dry place away from direct sunlight. Do not use boiling water in the pitcher or freeze it. Rinse the pitcher housing weekly and allow cartridges to sit for at least 15 minutes after insertion before first use to ensure proper media settling and hydration.
What we don’t know
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- has made a specific claim
Formulations change between production runs, so check the current label. How we grade.
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How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.