1/4" x 1/8" Compression x Male NPT Adapter Pipe Fitting Tube Connector – compressor-source
Brass Reducer 1/4" Bsp Male Thread To 1/8" Bsp Female Thread Reducing Bush Adapter Fitting Gas Air Water Fuel - Pipe Fittings - AliExpress
Sennheiser Universal 1/8" to 1/4" Headphone Adapter 549346 B&H
Amazon.com: VCE 1/4" to 1/8" Adapter, 3.5mm 1/8 inch Male to 6.35mm 1/4 inch Female Audio Jack Gold Plated Adapter for Amplifiers, Guitar, Home Theater Devices, Laptop, Headphones - 8 inch : Electronics
1/8" NPT Male to 1/4" MFL Male Flare Adapter
Reducer Pipe Adapter 1/4 Female Npt to 1/8 Male Npt Brass Fitting Water Air Gas | eBay
Eaton - 3/8" Tube OD x 1/4" NPT 37° Steel Flared Tube Female JIC 37° Swivel to Male Pipe Adapter - 06682116 - MSC Industrial Supply
Threading Adapter, NPT 1/8 Male to G 1/4 Female
KRK Screw On Headphone Adapter 1/8 Inch To 1/4 Inch | Long & McQuade
Amazon.com: Legines Brass Pipe Fitting, NPT Adapter 1/4" Female to 1/8" Male Reducing Adaptor 1200psi High Pressure (Pack of 2) : Industrial & Scientific
1/8" 1/4 3/8" 1/2" Female Male BSP Coupler Brass Connector Fitting Adaptor Union | eBay
1/4" NPT Male to 1/8" NPT Male Brass Pipe Hex Reducer/Reducing Nipple Fitting/Adapter: Air Tool Fittings: Amazon.com: Industrial & Scientific
Insten 1 / 4 Audio to 1 / 8 Audio M / F Adapter (1/4" M to 1/8" 3.5mm F) - Walmart.com