Tools & Home Improvement
4-1/4 Inch Screw-in Round Shower Drain Cover Replacement Floor Filter, with Screws (Matt Black)
Bias-adjusted across 181 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Tools & Home Improvement.
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How the score was built
- Amazon ratings
- 181
- Raw star average
- 4.5 / 5
- Bayesian avg
- 4.43
- Reviewer-graph z
- -0.707
used for the Bayesian percentile
unadjusted Amazon mean
raw rating shrunk to the category prior
bias-corrected vs. each reviewer's baseline (0 qualifying)
Buy it: View on Amazon →
Same category · Tools & Home Improvement
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