Ratio
Coffee filters for the Ratio Four
Takes this filter
Universal 4–6 cup (junior) basket
6⅞ × 3⅛ in175 × 78 mm · Flat-bottom basket
Wholesale only · made to order
We run this size to order for large-batch wholesale customers.
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The Universal 4–6 cup (junior) basket filter and its other names
| Brand and part | Size | Also sold as | FLTR PUR |
|---|---|---|---|
| Universal 4–6 cup (junior) basket | 6⅞ × 3⅛ in175 × 78 mm | Melitta Junior basket, Mr. Coffee 4-Cup Filters, Rupert & Jeoffrey 4 Cup Basket, 4-5 cup basket, 2-5 cup basket, Melitta 4-6 Cup Jr. Basket | Wholesale only · made to order |
Brewers that take the same filter
More Ratio coffee makers
Questions and answers
What size coffee filter does the Ratio Four use?
The Ratio Four uses the Universal 4–6 cup (junior) basket (6⅞ × 3⅛ in, 175 × 78 mm) filter. FLTR PUR makes this size to order for wholesale customers.
Can’t find your brewer? Measure your filter.
- A · Flat diameter: lay one filter flat and measure edge to edge.
- B · Base: measure across the flat bottom of a formed filter.
- C · Wall height: measure the fluted side from base to rim.
Send us your size
Spot an error, or know a brewer we’re missing?
Every change is checked against the manufacturer before it goes live. A link to a manual, spec sheet or the brand’s own page helps most.
Brand names are trademarks of their respective owners, used only to identify compatibility. FLTR PUR is not affiliated with or endorsed by these manufacturers.