Hansgrohe · Shower Filters
Hansgrohe TB1 Cartridge
Lower-concern water filter cartridge; ceramic media has no inherent PFAS risk, but Hansgrohe makes no public PFAS commitment.
The TB1 cartridge uses ceramic filtration media, which is not a known PFAS vector. Hansgrohe does not publicly disclose PFAS information or hold third-party green certifications. No public lab data or recalls exist. Confidence is moderate due to lack of manufacturer transparency.
Shop Hansgrohe on Amazon →Material
Ceramic cartridge with brass/metal housing
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
No PFAS disclosure
No public statement about PFAS in this product.
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
The full breakdown
What it's made of and why it matters
The TB1 uses a ceramic cartridge as its filtration medium, paired with brass and metal housing components. Ceramic is chemically inert and does not leach heavy metals, BPA, or other endocrine disruptors under normal water exposure at typical household temperatures (below 140°F). The brass housing is standard in plumbing fixtures and poses no known leaching risk in brief contact with water before it exits the showerhead; the cartridge is not intended for prolonged submersion or hot water storage.
The brand's record and disclosure
Hansgrohe is a major European plumbing manufacturer with ISO 9001 and ISO 14001 certifications, indicating quality and environmental management systems. The company does not publish a dedicated PFAS policy or third-party testing results for contaminants in cartridge media. No product recalls, safety warnings, or independent reports of contamination (heavy metals, microplastics, bacterial growth failures) are on record for the TB1 specifically. Transparency on material sourcing and testing is limited compared to some competitors.
How it compares in its category
Shower filters using ceramic media are among the safest options in the category because ceramic does not degrade, shed microplastics, or release synthetic chemicals under typical use. The TB1 is a mainstream choice; equivalent products from brands like PUR or Aqua Crest use similar ceramic or activated carbon blends. Unlike some budget filters, the TB1 has no known issues with housing degradation or seal failure in normal conditions. Ceramic cartridges do require periodic cleaning and replacement (typically every 6-12 months) to prevent mineral buildup and bacterial colonization.
If you buy it
Replace the cartridge every 6 to 12 months depending on water hardness and usage frequency; mineral deposits reduce efficacy and can harbor bacteria. Clean the cartridge under running water monthly to remove sediment and extend its life. Store cartridges in a dry location before installation; do not expose to freezing temperatures, which can crack ceramic. Do not use with water above 140°F; scalding hot water can damage seals, though typical shower use (104-108°F) is safe.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Bacterial growth in cartridge
If cartridge is not replaced on schedule or is stored damp before use, bacteria can colonize the ceramic surface. No specific incidents reported for TB1, but this is a known risk in all shower filters if maintenance is neglected.
Brass housing corrosion and leaching
Brass in plumbing fixtures is regulated and does not leach toxic metals (copper, zinc) at levels of concern in brief water contact. No reports of corrosion or metal contamination from TB1 housing.
Microplastics from degraded housing seals
TB1 housing is metal and ceramic, not plastic, so microplastic shedding from the cartridge itself is not a risk. Rubber or silicone seals are standard; no evidence of degradation or particle release in normal use.
Lead in brass solder or fittings
Hansgrohe products sold in regulated markets (EU, North America) comply with lead limits in brass components. No recalls or findings of elevated lead in TB1 or comparable Hansgrohe cartridges.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
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More shower filters grades
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.