Grove Collaborative Replacement Filters 2 Pack Soma Water Filter
Lower concern; no known PFAS risk, but brand offers no public commitment.
Cartridges use activated carbon and ion-exchange resin, materials with inherently lower PFAS risk compared to Teflon-family coating-coated items. Brand does not discuss PFAS-free status or make material details public, creating some uncertainty about trace contaminants.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Activated carbon and ion-exchange resin filter media
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Grove Collaborative Replacement Filters 2 is made of, ingredients and materials
Soma replacement filters use activated carbon and ion-exchange resin to reduce chlorine, sediment, and certain dissolved contaminants. Activated carbon is inert when used in cold water filtration and does not leach into drinking water under normal operating conditions. Ion-exchange resin is also stable in this application and poses no documented leaching risk in faucet-filter format. The filter housing materials are not publicly detailed by Soma, but standard food-grade plastic housings in this category rarely introduce contaminants if replaced on schedule.
What’s concerning
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Bacterial biofilm growth in stagnant filter media
Activated carbon filters accumulate bacteria if not replaced on schedule (every 2 months). Extended use beyond recommended replacement interval creates conditions for microbial contamination, a well-documented issue in consumer carbon filters.
Chlorine and sediment bypass if seal fails
Poor installation or misalignment of the filter cartridge can allow contaminants to pass around the media rather than through it. User error rather than product defect, but improper setup defeats the filter's purpose.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Housing material leachables (plastic)
Soma does not disclose housing material composition or testing results. Standard food-grade plastic housings in faucet filters do not leach under cold water use, but Soma provides no certifications to verify material grade.
Resin degradation and particle shedding
Ion-exchange resin is stable in cold water and does not shed particles during normal use. No documented cases of resin failure in Soma filters, but replacement intervals should be observed to prevent media breakdown.
PFAS
Activated carbon and ion-exchange resin are not inherent PFAS sources. Soma does not disclose PFAS content or reduction performance; the brand's silence on PFAS testing is notable given growing consumer concern.
Source, ATSDR ↗The full breakdown
The brand's record and disclosure
Soma has not published specific safety data sheets or third-party certification results for these filters. The brand does not maintain a public PFAS statement despite selling water filters marketed for contaminant reduction. No product recalls related to filter media contamination or housing leaching have been documented for this product line. Soma markets sustainability and carbon footprint reduction but does not transparently address chemical safety testing or certification.
How it compares in its category
Soma filters are mid-range in price and performance within the faucet-filter segment. Competitors like Brita and PUR publish more detailed contaminant-reduction claims and third-party test results; Soma's transparency is weaker. Activated carbon and resin are standard, widely used media in consumer water filters and are not inherently riskier than alternatives. The key differentiator is maintenance discipline, Soma filters require replacement every 2 months to prevent bacterial biofilm growth, a risk common to all carbon filters if left in service too long.
If you buy it
Replace the filter every 2 months or sooner if water flow slows noticeably; stagnant carbon becomes a host for bacteria and mold. Store unopened filters in a cool, dry place away from direct sunlight to prevent resin degradation. Do not use with untreated water that visibly contains sediment or particles; pre-filter if necessary. Install per manufacturer instructions to ensure proper seal and avoid bypass around the filter media.
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
- Soma has made none
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.