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Brass Pipe Fitting Reducer Adapter, 1/2" NPT Male x 3/8" NPT Female for Water Oil Air Pressure Gauge Temp Sensor - Walmart.com
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Everbilt 1/2 in. x 3/8 in. Copper Pressure Cup x MIP Male Adapter Fitting C604HD1238 - The Home Depot
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![BrassCraft 3/8-in x 1/2-in Compression x Mip Adapter Fitting in the Brass Fittings department at Lowes.com BrassCraft 3/8-in x 1/2-in Compression x Mip Adapter Fitting in the Brass Fittings department at Lowes.com](http://mobileimages.lowes.com/productimages/119b851a-d4a1-4f89-95b4-cb73f4441d61/04195677.jpg)
BrassCraft 3/8-in x 1/2-in Compression x Mip Adapter Fitting in the Brass Fittings department at Lowes.com
![Amazon.com: FasParts 1/2" Female NPT to 3/8" Female NPT FIP FPT Reducing Coupling Brass Pipe Fitting Fuel/Air/Water/Boat/Gas/Oil WOG : Industrial & Scientific Amazon.com: FasParts 1/2" Female NPT to 3/8" Female NPT FIP FPT Reducing Coupling Brass Pipe Fitting Fuel/Air/Water/Boat/Gas/Oil WOG : Industrial & Scientific](https://m.media-amazon.com/images/I/61wK7PS9nhL.jpg)
Amazon.com: FasParts 1/2" Female NPT to 3/8" Female NPT FIP FPT Reducing Coupling Brass Pipe Fitting Fuel/Air/Water/Boat/Gas/Oil WOG : Industrial & Scientific
![Proline Series 1/2-in x 3/8-in Threaded Male Adapter Bushing Fitting in the Brass Fittings department at Lowes.com Proline Series 1/2-in x 3/8-in Threaded Male Adapter Bushing Fitting in the Brass Fittings department at Lowes.com](https://mobileimages.lowes.com/productimages/d02f19d5-0113-4520-97a6-f4281cce12e0/09386958.jpg?size=pdhism)