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Automotive

Etopar 12V Heavy Duty 170-200 PSI Pressure Control Switch Valve Air Compressor Horn Pump Car Train Regulator

Automotive3.7· 54 Amazon ratings

Bias-adjusted across 54 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Automotive.

12.5%
Percentile · Global
12.0%
Percentile · Cohort
Automotive
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Etopar 12V Heavy Duty 170-200 PSI Pressure Control Switch Valve Air Compressor Horn Pump Car Train Regulator

How the score was built

Amazon ratings
54

used for the Bayesian percentile

Raw star average
3.7 / 5

unadjusted Amazon mean

Bayesian avg
4.08

raw rating shrunk to the category prior

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Same category · Automotive

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