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DEWALT 1/4-in to 1/2-in Socket Adapter in the Socket Adapters department at Lowes.com
Brass Pipe Fitting 1/4 Inch Female Pipe 1/2 Inch Male Reducer Adapter Air Hose Adapter Metal Pipe Adapter 2 Pack - - Amazon.com
Aluminum Adapter, 1/2" Male NPT to 1/4" Male NPT | Air & Hydraulic Equipment,Inc.
Threading Adapter, NPT 1/2 Male to G 1/4 Female
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3 Piece Socket Adapter Set Increasing 3/8" 1/2" 3/4" Female 1/4" 3/8" 1/2" Male - Walmart.com
Amazon.com: 3 Pieces Vacuum Hose Adapter, 2-1/2 Inch to 1-1/4 Inch, 1-1/4 Inch to 1-3/8 Inch to 1-1/2 Inch, 1-3/8 Inch to 1-1/4 Inch Wet Dry Vacuum Converter Reducer Attachments for Vacuum Cleaner : Home & Kitchen
4pcs 1/4 3/8 1/2 Drive Socket Adapter Converter Reducer Air Impact Socket Wrench Adapter Hand Tools Set Drive Socket Adapter - Wrench - AliExpress
1-1/2" x 1-1/4" DWV PVC Trap Adapter - Female H x SJ D104-212
Proline Series 1/4-in x 1/2-in Threaded Male Adapter Bushing Fitting in the Brass Fittings department at Lowes.com
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2 PCS 1/2 inch Square Drive to 1/4 inch Hex Female Socket Adapter Converter Chuck Adapter for Impact Air and Electric Wrench - - Amazon.com
CR V Steel Socket Ratchet Converter Adapter Reducer 1/2" to 1/4" 1/2" to 1/4" Car Bicycle Garage Repair Tools Small Socket Tools|Sockets| - AliExpress
Amazon.com: R134A Brass Adapter Fitting, 1/4" Male to 1/2" Female Refrigerant Tank Adapterr with Valve Core, Fits for AC Refrigerant System : Automotive