1/2" Hose ID x 1/4" Hose ID Reducer Barb Mender/Splicer/Joiner/Union Fitting Brass Tubing Hose Adapter/Coupler 2pcs: Amazon.com: Industrial & Scientific
1/2" NPT Male to 1/4" NPT Male Brass Pipe Hex Reducer/Reducing Nipple Fitting/Adapter: Amazon.com: Industrial & Scientific
3/8" to 1/4" 1/2 inch Drive Ratchet Converter Socket Adapter Reducer Air Impa AL | eBay
Brass 1/2 BSPT male to 1/4 BSPT male adapter - From Gyroscope.com
NIBCO 1-1/2 x 1-1/4 in. PVC DWV Trap Adapter Fitting C480127HD112114 - The Home Depot
LTWFITTING 1/2 in. FIP x 1/4 in. MIP Brass Pipe Adapter Fitting (5-Pack) HF1028405 - The Home Depot
Water Tank Connector】1/2" 3/4" 1" 1-1/4" 1-1/2" BSP Female Thread 304 – saleaxis.com
M14 Female To 1/2 Inch 1/4 Inch M10*1 Male Pressure Gauge Fittings,m20 Female To 1/2 Inch 1/4 Inch Male Pressure Gauge Adapter - Pipe Fittings - AliExpress
1/2" x 1/4" Sch 40 PVC Reducing Female Adapter - Soc x Fipt 435-072
Threading Adapter, NPT 1/2 Male to G 1/4 Female
LASCO 1-1/2-in x 1-1/4-in Adapter PVC Adapter in the PVC Pipe & Fittings department at Lowes.com
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
Parker - Industrial Pipe Adapter: 1/2" Female Thread, 3/4-16 Male Thread, Male Straight Thread O-Ring x Female NPTF - 09107921 - MSC Industrial Supply
Nickson Exhaust Adapter: 2" Inside Diameter, 2 1/4" Outside Diameter, 4" Long 548523 - Advance Auto Parts
Reducer 1/2" to 1/4" Npt Female Pipe Adapter Coupler Brass Fitting Water Oil Gas | eBay
30320 - Elkhart 30320 - 1/2" x 1/4" Copper x Male Adapter
BrassCraft 1/2-in x 3/4-in Threaded Male Hose x Fip Adapter Fitting in the Brass Fittings department at Lowes.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
PROTO, 1/4 in_3/8 in_1/2 in Output Drive Size, Square, Socket Adapter Set - 19C375|JHA4S - Grainger
2" to 1-1/4" Hitch Adapter
2" to 1-1/4" Hitch Reducer | Discount Ramps
Apex EX-260-B Apex 1/2'' Square Drive Adapter
Aluminum Adapter, 1/4" Male NPT to 1/2" Female NPT | Air & Hydraulic Equipment,Inc.
CRAFTSMAN 3/8-in to 1/2-in Standard Socket Adapter in the Socket Adapters department at Lowes.com
3/8" Male NPT x 1/2" Female NPT Brass Straight Adapter | Fastenal
4pcs 1/4 3/8 1/2 Drive Socket Adapter Converter Reducer Air Impact Craftsman Socket Wrench Adapter Hand Tools Set Repair Tools - Sockets - AliExpress
Plumb Pak® 1-1/2" x 1-1/4" Plastic Reducing Tubing Adapter at Menards®