GRAINGER APPROVED Reducing Adapter: Brass, 3/8 in x 1/4 in Fitting Pipe Size, Female NPT x Male NPT, Reducer - 46M454|706120-0604 - Grainger
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EEEkit 4-pack 3/8" to 1/4" 1/2 inch Socket Adapter Reducer Air Impact Set for Ratchet Handles, Extension Bars Accessories - Walmart.com
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Price history & Review on 1/4" 3/8" 1/2" Ratchet Wrench Adapter Chrome Vanadium Sleeve Adapter Drive Socket Converter Wrench Transform Joint Converter | AliExpress Seller - Feng Yi Lian Chao Tool Store
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