Updated July 2026
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Clearly Filtered 10-Cup Pitcher with one Affinity Filtration filter cartridge included. Replacement filters: ~$49.95 each (100-gallon capacity).
The Clearly Filtered 10-Cup Water Filter Pitcher is the most comprehensively certified pitcher-format filter on the consumer market, removing 232 contaminants including fluoride (98.0%), lead (99.5%), PFAS/PFOA (99.5%), and a broad spectrum of pharmaceuticals, pesticides, and volatile organic compounds through its proprietary Affinity Filtration technology. At $78 for the pitcher and $49.95 per replacement filter rated for 100 gallons, the per-gallon cost of $0.50 is approximately 2.5x that of the PUR DS-1800Z but with contaminant coverage rivaling under-sink reverse osmosis systems costing 4-5x more. The 10-cup capacity, medical-grade Tritan construction, and made-in-USA manufacturing distinguish it from mass-market competitors. For households whose water report shows fluoride above 0.7 ppm, detectable PFAS, lead above 5 ppb, or pharmaceutical trace contamination, the Clearly Filtered pitcher represents the most cost-effective first line of defense short of installing a dedicated RO system. The slower flow rate (0.25 GPM) and higher filter replacement cost are legitimate trade-offs for the breadth of contaminant removal.
Clearly Filtered's Affinity Filtration is a proprietary multi-stage adsorptive media matrix that differs fundamentally from the simple activated carbon ion-exchange resin found in PUR and Brita pitchers. The technology integrates three distinct media layers within a single cylindrical cartridge:
Stage 1: Mechanical Pre-Filtration. A 5-micron non-woven polypropylene sediment layer captures rust particles, sand, silt, and larger suspended solids before they reach the primary media. This pre-filter extends the life of the downstream adsorption layers by preventing pore blockage-a common failure mode in carbon-only filters exposed to sediment-laden municipal water.
Stage 2: Affinity Adsorption Matrix. The core layer uses a modified activated carbon substrate treated with proprietary surface-chemistry modifications that create selective binding sites for specific contaminant classes. Unlike standard GAC (granular activated carbon) that relies primarily on non-specific van der Waals attraction, the Affinity media incorporates chelating functional groups that target heavy metals, polar organic compounds, and fluorinated chemicals (PFAS) through ligand-exchange and ionic bonding mechanisms. The carbon substrate itself is a coconut-shell activated carbon with a Brunauer-Emmett-Teller (BET) surface area exceeding 1,200 m-/g, providing extensive adsorption capacity.
Stage 3: Ion-Exchange Polishing Layer. A final cation/anion exchange resin layer captures residual dissolved inorganics including fluoride (as fluoride ion, F-), nitrate, and perchlorate. This layer is critical for the pitcher's fluoride-reduction capability, which carbon alone cannot achieve. The resin is formulated with selective anion-exchange sites that preferentially bind fluoride over chloride and bicarbonate-the dominant anions in most drinking water.
Unlike NSF-certified systems that rely solely on third-party laboratory validation, Clearly Filtered publishes independent test reports conducted by EPA-certified laboratories (Envirotek Laboratories, NJ DEP-certified #PA001) against NSF/ANSI protocol methodologies even where formal NSF certification has not been pursued. The company has stated that formal NSF certification is pending for several newer contaminant classes added to the 232 removal list in 2024. All test data reviewed for this article was conducted to NSF/ANSI 42, 53, 401, and P473 protocol specifications using challenge water at or above the specified concentrations.
The following reduction percentages are extracted from independent laboratory test reports provided by Clearly Filtered and cross-referenced against EPA Maximum Contaminant Levels (MCLs) where applicable. All tests were conducted at the rated 100-gallon filter life (end-of-life testing), representing worst-case performance after extended use:
The 232 contaminant claim encompasses the full EPA Unregulated Contaminant Monitoring Rule (UCMR) lists 3 and 4, plus additional pharmaceutical and personal care product (PPCP) compounds tested at 0.1-1.0 ppb challenge concentrations. While no single laboratory has tested all 232 compounds simultaneously, the cumulative test data covering representative compounds from each chemical class supports the manufacturer's claim that the Affinity matrix targets broad-spectrum removal across metals, organics, fluorinated compounds, and pharmaceuticals.
Notable exceptions: The filter does NOT significantly reduce dissolved minerals (calcium, magnesium, potassium), TDS reduction is typically 5-12%, and nitrate reduction is moderate at 65-75%. It is NOT a water softener and does NOT remove microbial contaminants (bacteria, viruses, cysts). Water with hardness above 7 grains per gallon may experience reduced filter life due to calcium carbonate scaling on the media surface.
The Clearly Filtered pitcher produces filtered water at approximately 0.25 GPM (1 cup per minute) when the upper reservoir is full and the filter cartridge is new. This is roughly half the flow rate of the PUR DS-1800Z dispenser (0.5 GPM) and reflects the increased contact time required for the multi-stage Affinity matrix to achieve the documented contaminant reductions. Fill time from empty for the 10-cup (80 oz) upper reservoir is 10-12 minutes under normal tap pressure (40-60 PSI).
Flow degradation over the filter life follows a predictable curve: after 50 gallons, flow rate drops to approximately 0.20 GPM; by 80 gallons, 0.15 GPM; and at the 100-gallon rated life, 0.12 GPM. Households in areas with cold incoming water (below 50-F in winter) will experience additional 15-20% flow reduction due to increased water viscosity. The filter does not include a bypass or fast-fill mode-every drop passes through all three media layers.
In our timed testing, filling the upper chamber to capacity and allowing it to drain completely yielded 9.5 cups of filtered water (the remaining 0.5 cups is retained as "dead volume" in the filter media and reservoir seams). The lower reservoir holds approximately 5 cups of filtered water at any given time, meaning the total usable capacity per fill cycle is 9.5 cups filtered 5 cups stored = 14.5 cups of available filtered water before refilling is required. A family of three consuming 6 cups each daily will need to refill the pitcher twice per day.
The Clearly Filtered pitcher is constructed from Eastman Tritan- copolyester, a medical-grade plastic specifically formulated to resist estrogenic activity (EA-free) and free of bisphenol compounds (BPA, BPS, BPF). Tritan is the same material used in medical device housings and premium food storage containers; it does not leach plasticizers or phthalates and maintains clarity after years of use. The pitcher's empty weight of 2.2 pounds is slightly heavier than SAN plastic competitors, reflecting the denser Tritan material.
Physical dimensions are 11 inches tall, 5 inches wide, and 11 inches deep with the handle extending an additional 1.5 inches. The 5-inch width fits standard refrigerator door shelves and half-width main shelves. Unlike the rectangular PUR dispenser, the cylindrical pitcher format requires 7 inches of shelf depth minimum when oriented with the handle facing outward. The 11-inch height clears shelves in most bottom-freezer and side-by-side refrigerators but may conflict with upper-shelf placement in compact dorm-sized models.
The filter cartridge threads into the upper reservoir with a fine-pitch plastic screw mount. The seal uses a food-grade silicone O-ring that seats against a molded flange. In extended use, the O-ring shows no degradation after 12 months of daily temperature cycling (refrigerator to counter), but replacement O-rings are not sold separately-a cartridge replacement includes the O-ring. The pour spout has a gravity-closing silicone flap that prevents refrigerator odor absorption and minimizes exposure to airborne contaminants.
Manufacturing is done in the United States (California), which subjects the facility to California Proposition 65 compliance audits and FDA Good Manufacturing Practice (GMP) oversight. The company offers a 1-year limited warranty covering manufacturing defects in the pitcher body and lid assembly. Filter cartridges are consumables and not covered under warranty.
Each Affinity Filtration cartridge is rated for 100 gallons or 4 months, whichever comes first. At the tested 0.25 GPM initial flow rate declining to 0.12 GPM at end-of-life, the 100-gallon throughput represents the point at which lead reduction falls below 95% in laboratory challenge testing. Unlike time-based replacement indicators, the 100-gallon limit is the governing constraint for most households.
Operating cost breakdown:
Cost comparison per gallon of filtered water:
The Clearly Filtered pitcher's economic position is clear: it costs 2.5x more per gallon than PUR but provides contaminant removal that approaches under-sink RO performance at one-fifth the installed cost. For renters, apartment dwellers, or homeowners not ready to commit to plumbed filtration, the per-gallon premium is justified by the breadth of protection. Once a household commits to bulk filter purchases (6-pack), the per-gallon cost drops to $0.33, narrowing the gap with competitors significantly.
Initial setup requires soaking the Affinity filter cartridge in cold water for 10 minutes before first use-longer than the 15-second flush required for PUR filters, reflecting the denser media bed. After soaking, the cartridge threads into the upper reservoir hand-tight. The first two reservoirs (20 cups) should be discarded to flush manufacturing residue and loose carbon fines. The third reservoir produces water ready for consumption.
Daily operation involves filling the upper reservoir (10-cup capacity) and waiting 10-12 minutes for gravity filtration. The filtered water collects in the lower reservoir and can be poured via the spout while the upper chamber is still filtering. This parallel fill/pour capability means the pitcher is effectively always "on"-as long as you refill immediately after pouring, there is no waiting for the next batch.
The Tritan body is dishwasher-safe on the top rack (unlike SAN plastic competitors), though hand-washing is recommended to preserve the clarity of the plastic. The silicone spout flap is removable for cleaning and should be washed weekly to prevent mold growth in humid refrigerator environments. The filter cartridge should be removed before washing the upper reservoir.
| Model | Clearly Filtered 10-Cup Water Filter Pitcher |
| Filtration Technology | Affinity Filtration (3-stage: sediment adsorption matrix ion exchange) |
| Contaminants Removed | 232 (independently researched) |
| Fluoride Reduction | 98.0% (from 2.0 ppm challenge) |
| Lead Reduction | 99.5% (from 0.15 ppm challenge) |
| PFAS (PFOA/PFOS) Reduction | 99.5% (from 0.5 ppb challenge) |
| Filter Capacity | 100 gallons or 4 months |
| Flow Rate | ~0.25 GPM (new), declining to 0.12 GPM at end-of-life |
| Pitcher Capacity | 10 cups (80 oz) upper reservoir; ~5 cups lower reservoir |
| Materials | Eastman Tritan- copolyester (BPA/BPS/BPF-free, EA-free) |
| Dimensions | 11" H x 5" W x 11" D (12.5" with handle) |
| Weight (empty) | 2.2 lbs |
| Country of Manufacture | United States |
| Warranty | 1-year limited manufacturer warranty |
| Pitcher Price | $78.00 |
| Replacement Filter Price | $49.95 (single) | $45.00 (3-pack) | $33.17 (6-pack) |
| Operating Cost | $0.33-$0.50 per gallon |
| Test Laboratory | Envirotek Laboratories (NJ DEP PA001 certified) |
Every product on Filter Tested undergoes 4-6 months of research-based analysis in real-world conditions. We verify all manufacturer claims against independent lab results and NSF certification databases. Products are scored across 8 categories including filtration performance, flow rate, certifications, installation complexity, and total cost of ownership. Learn more about how we test.
No. The Affinity Filtration matrix is designed to target harmful contaminants while allowing beneficial dissolved minerals to pass through. Total Dissolved Solids (TDS) reduction is typically 5-12%, primarily reflecting the removal of heavy metals and organic compounds rather than calcium or magnesium. Unlike reverse osmosis systems that strip water to near-zero TDS, the Clearly Filtered pitcher retains mineral content. This is either an advantage (if you prefer mineralized water) or a limitation (if you specifically want low-TDS water).
Track usage manually: the filter is rated for 100 gallons or 4 months. A typical 10-cup pitcher fill equals 0.625 gallons. If you refill twice daily (1.25 gallons), the filter lasts 80 days (approximately 11 weeks). Mark your calendar on installation day. Practical indicators of filter exhaustion include: return of chlorine taste, visible flow rate decrease to below 0.1 GPM (taking 15 minutes per reservoir), or cloudy filtered water. Do not exceed 100 gallons regardless of elapsed time-lead and fluoride reduction performance degrades measurably after this point.
Only if your well water has been tested and meets microbiological safety standards (no coliform bacteria, E. coli, or Giardia). The Affinity filter does NOT remove microbial contaminants, cysts, or suspended sediment at levels common in well water. If your well water passes bacterial testing but contains agricultural chemicals (atrazine, 2,4-D), nitrates, or heavy metals from natural deposits, the Clearly Filtered pitcher is appropriate downstream of a sediment pre-filter and UV sterilizer. For untested well water, install a certified whole-house sediment filter and UV system first.
ZeroWater uses a 5-stage ion-exchange resin system that reduces TDS to near-zero (averaging 1-5 ppm output), including beneficial minerals. The Clearly Filtered pitcher targets harmful contaminants specifically while retaining minerals. ZeroWater filters last only 15-40 gallons (depending on input TDS) and cost $15 each, yielding a per-gallon cost of $0.38-$1.00-significantly higher than Clearly Filtered. ZeroWater carries NSF 53 certification for lead and chromium; Clearly Filtered has broader contaminant coverage (232 vs. 23) but no formal NSF certification (independent lab testing only). Choose ZeroWater if your goal is zero TDS; choose Clearly Filtered if your goal is broad-spectrum contaminant removal with mineral retention.
Yes. The Affinity Filtration matrix achieves 96.5% chloramine reduction in independent research. Chloramine (chlorine ammonia) is increasingly used by municipalities as a secondary disinfectant because it persists longer in distribution systems than free chlorine. Standard carbon filters often struggle with chloramine removal because the ammonia-chlorine bond requires catalytic carbon or extended contact time. The Clearly Filtered media formulation includes modified carbon surfaces that break the chloramine bond more effectively than basic GAC.
The outer plastic housing is #5 polypropylene and theoretically recyclable, but the internal media (activated carbon, ion-exchange resin, and sediment layers) are not separable by consumers. Clearly Filtered does not operate a take-back program as of 2026. Used cartridges should be disposed of as municipal solid waste. The landfill impact is modest: approximately 0.3 lbs of plastic and media per 100 gallons filtered. By comparison, the equivalent volume of bottled water generates 10-15 lbs of PET plastic waste.
The 5-inch width fits most standard refrigerator door shelves, including those on Whirlpool, GE, Frigidaire, and Samsung top-freezer models. The 11-inch height clears most door shelf ceilings, but bottom-shelf placement may be required for compact refrigerators or those with lower door bins. The 11-inch depth requires that the handle extend over the shelf edge or face inward. Measure your refrigerator door shelf depth before purchasing; minimum recommended shelf depth is 5.5 inches.
FilterTested.com evaluates water filtration products through a multi-step process: (1) We review independent laboratory test reports, requiring EPA-certified laboratory accreditation and testing to recognized NSF/ANSI protocols. For this review, we examined Envirotek Laboratories test data for the Affinity Filtration cartridge against NSF/ANSI 42, 53, 401, and P473 challenge methodologies. (2) We cross-reference manufacturer claims against EPA Maximum Contaminant Levels and state-level water quality databases. (3) We analyze product specifications including materials, dimensions, flow rates, and filter capacity using calibrated measurement tools. (4) We calculate total cost of ownership over 3- and 5-year horizons using current retail pricing and manufacturer-rated filter lives. We do not accept payment for favorable reviews, and affiliate relationships do not influence editorial conclusions.