Best Gravity Water Filter in 2025? 7 Systems (Lab-)Tested!

**UPDATE** *We just released our gravity water filter comparison 2.0 featuring 18 setups in total:* https://www.youtube.com/watch?v=8Mexpfgckmc We also made sure to create a better balance between covering our top picks and discussing the remaining systems. --- Sara reviews the 7 most effective and most popular gravity (countertop) water filters. *Comparison sheet with full analysis of the 7 gravity filters including lab reports (now hosted directly on our website): https://bos-water.com/filters/gravity/best/#full-analysis* *If the above link doesn't work, please try this shortened link: https://bit.ly/4opHwZf* *Gravity Water Filter Recommendations* *1️⃣ Best Overall: Big Berkey* *→ Buy Here: https://theberkey.com/products/big-berkey-water-filter?rfsn=8954243.e4c964 – Use code “BOSWATER5BERKEY” for 5% off!* *2️⃣ Best for Nitrate + Best Budget Pick: Purewell* *→ Buy Here: https://amzn.to/4bNmXyM* *3️⃣ Possibly the Best for Waterborne Pathogens (Aside from Berkey): British Berkefeld* *→ Buy Here: https://amzn.to/48JG4Yo* Other Gravity Filters Mentioned in This Video ProOne Traveler+ → Buy Here: https://prooneusa.com/product/traveler-plus/?campaign=YTTopGravity&ref=217 Waterdrop King → Buy Here: https://www.waterdropfilter.com/products/wd-tank-king?variant=39556619829330&ref=aqhvda420xp – Use code “WD10BOS” for 10% off! Alexapure Pro → Buy Here: https://www.mypatriotsupply.com/collections/water-filtration?_ef_transaction_id=&utm_source=everflow&utm_medium=aff&utm_campaign=&utm_term=1030&utm_content=&uid=55&oid=9&affid=1030&source_id=gravfilYT&sub1=gravfilYT Santevia → Buy Here: https://collabs.shop/4vj1y2 – Use code “bos_water” for 10% off! Top 10 Countertop RO System Video: https://youtu.be/-W65jKwcE2w *Sponsor Links* US Water Systems Website – https://bit.ly/463ZkQF US Water Systems Water Test Kits – https://bit.ly/3Lmc6kb US Water Systems Discount Code – “BESTRO5” for 5% off! (Valid for $199+ Purchases) Buy Us a Coffee Every coffee helps us test more products and bring you unbiased results: https://buymeacoffee.com/bos.water Table of Contents 00:00 – Intro 00:27 – Our 7 Gravity Filters 01:42 – How We Tested & Rated 04:38 – Video Sponsor 05:46 – Best Overall (Big Berkey) 07:23 – Aluminum Leaching 11:17 – Big Berkey Features & Pros 13:20 – Big Berkey Cons 13:50 – Filter Life 16:25 – 3 Common Berkey Concerns 19:01 – Berkey Summary 19:19 – Best for Nitrate (Purewell) 20:51 – Outdoor Use 22:04 – Outro Here is how we tested and ranked the 7 gravity water filters: -Filtration effectiveness based on our lab testing -NSF certifications, NSF testing, and other test data -Filter media/process -Water taste and odor -Usability -Costs -Other factors Sources https://www.fishersci.com/store/msds?partNumber=AC212250250&productDescription=ALUMINUM+OXIDE%2C+99.99%25+25GR&vendorId=VN00032119&countryCode=US&language=en https://www.cdhfinechemical.com/images/product/msds/41_1525369731_AluminiumOxide-CASNO-1344-28-1-MSDS.pdf https://www.sigmaaldrich.com/DE/en/sds/sigald/a1522?userType=undefined https://nanopartikel.info/en/knowledge/materials/aluminium-oxides/ https://efsa.onlinelibrary.wiley.com/doi/epdf/10.2903/j.efsa.2006.394 https://oehha.ca.gov/water/chemicals/aluminum Our website: https://bos-water.com/ Some of the products that appeared in this video were provided to us for free. All opinions are still 100% our own. Some links are affiliate links. If you buy a product or service through such a link we earn a commission at no additional cost to you. Amazon disclosure: As an Amazon Associate I earn from qualifying purchases. Link to disclaimer policy: https://bos-water.com/terms-of-service/ #boswater #waterfilter #review #gravitywaterfilter #bestgravitywaterfilter #waterdrop #berkey #proone #santevia