Best Large Gravity Water Filters (4.5 Gallons and Up) Ranked

2 large gravity water filters with 4.5 and 6 gallon tanks.

Last updated: November 9, 2026

Big tanks suit large families, offices and shared kitchens. Both systems here are Berkeys that take six or eight elements, which raises the maximum flow as well as the cost. They are 26 and 30 in tall.

Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.

Full ranking 2

  1. Crown Berkey
    #1 of 23.5Full review

    The largest Berkey, for a large family, a church kitchen or a workplace. Cheapest per gallon of capacity among the Berkeys.

    Amazon $478
    $478
    6 galTested only3,000 gal each
  2. Imperial Berkey
    #2 of 23.2Full review

    For a big household or a shared office. It costs about $100 per gallon of capacity, a better rate than the smaller Berkeys.

    Amazon $451
    $451
    4.5 galTested only3,000 gal each