The Clearly Filtered Pitcher is the most independently tested pitcher filter on the market. Its Affinity Filtration Technology — a proprietary blend of ionic binding carbon and other filter media — has been subjected to third-party laboratory testing covering 365+ contaminants, more than any pitcher competitor.
Independent testing by IAPMO New Jersey (ISO 17025 accredited lab) and WQA certification to NSF/ANSI Standards 42 and 53 underpin the performance claims. Key results: 99.54% fluoride reduction, 99.34% lead reduction, and certified PFOA/PFOS reduction. These are among the highest fluoride and lead removal rates measured for any pitcher filter in independent testing.
The distinction between "WQA-certified for 3 contaminants" and "independently tested for 365+" is worth understanding. NSF certification requires ongoing production audits and covers specific standard parameters. The broader 365+ figure comes from testing using NSF protocols at an ISO 17025 accredited lab. Both are credible but represent different levels of ongoing assurance.
The 2024 redesign introduced medical-grade Tritan plastic, replacing the older model. The 10-cup, 2.4-litre capacity and 100-gallon filter life put it at or above competitors in this class at a comparable price point.
For households where pitcher filtration makes sense and fluoride, PFAS, and lead removal are the primary concerns, the Clearly Filtered delivers the strongest documented performance in the pitcher category.
