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Description
Math for KnittersAre you tired of avoiding patterns because they don't exactly match your yarn or measurements? Math for Knitters, by Kate Atherley (author of "Custom Fit Hats") is your key to pattern freedom! This practical guide transforms intimidating knitting calculations into simple arithmetic anyone can master. Finally understand what gauge really means and how to work with it when yours doesn't precisely match the pattern. Learn to confidently substitute yarns
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.0 ★★★★★
Based on 1682 reviews
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Product Reviews
★★★★★ 5
Well Made and Fits Good
Size: 16x25x1
This filter seems to be the best made one that I've bought that I consider to be a good value, and I've bought many brands -- with the board frame beig the primary reason, but filter media is just as good and probably better too.
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Reviewed in the United States on May 11, 2026
★★★★★ 4
High Quality Air Filters
Size: 20x25x1
Great price for this 4 pack of filters! Fit true and have already helped increase airflow!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
★★★★★ 5
Quality and convenient four-pack
Size: 12x24x1
Exactly what I needed and love the idea that it comes in a four pack which makes it much more convenient when it's time to change my filters. They are quality made at a decent price. Will purchase again when needed!
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Great filter for dusty environments.
Size: 20x25x1
What a wonderful filter! Did a great job keeping this Arizona house dust down to a minimum. Yes, I will buy it again.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Good Filters
Size: 16x25x1
Good filters. Gets the job done and price was not bad either.
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Reviewed in the United States on May 18, 2026
