Ratio Six Flat Bottom Filters (Qty.100)

Ratio and Able have worked side-by-side since 2015 to perfect the Kone permanent filter designed for the Ratio Six and Eight. Experience superior brewing, simplified cleaning, and extra strength with the improved 2020 version. With the Kone, you won't have to worry about running out of paper filters ever again!

Ratio Six Brochure

Free Curbside Delivery
All orders include free curbside delivery via FedEx Ground, FedEx Freight, or the most trusted carrier available. Please note that delivery is to the curbside only - be sure to arrange for assistance if needed, as the carrier will not bring items inside your home.

Tracking & Delivery Scheduling
In most cases, you will receive tracking details 3-5 business days after you place your order. When the tracking number is sent, please allow 1-2 business days for the tracking number to populate details.

See our full Shipping Policy here.

Returns must be requested within 30 days of your delivery date. We are unable to process returns submitted after this period. Products must be unused, uninstalled, and in their original packaging, including the box and pallet, to qualify for a return.

Please note, a minimum 15% restocking fee and return shipping fee will be applied to all approved returns.

See our full Return Policy here.