Airgas - RAD64003933 - RADNOR™ Model AW-15A, 1/4" NPT Male X 5/8" - 18 UNF B RH Female Brass Inert Gas Inert Arc Adapter
Amazon.com: NANYI 1/4 Inch Female to 1/8 Inch Male Stereo Headphone Adapter, Upgrade 6.35mm Jack Stereo Socket Female to 3.5mm Jack Stereo Plug Male for Headphone, Amp Adapte, Black 1-Pack : Electronics
RPS Lighting Female 1/8" Mini to Male 1/4" Mono Adapter RS-8610
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" Female NPT X 1/4" Push Connect Adapter - John Guest - Bulk Reef Supply
Brass Adapter, Male (1/8-27 NPT), Female (1/4-18 NPT) – AGS Company Automotive Solutions
Amazon.com: JOMLEY 1/4 to 3.5mm Adapter, 1/8"(3.5mm) Female to 1/4"(6.35mm) Male Adapter, Quarter inch to 1/8 inch Stereo Headphone Adapter, Amp Adapter - 2 Pack : Electronics
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" to 1/4" Stereo Adapter - Etymotic
Amazon.com: Master Airbrush Brand 1/4" BSP Female to 1/8" BSP Male Fitting Conversion Adapter Bushing, Connector for Airbrush Hoses and Compressors : Tools & Home Improvement
1/4'' to 3/8'' screw thread converter-adapter | TeleprompterPAD.com
Sennheiser Universal 1/8" to 1/4" Headphone Adapter 549346 B&H
LTWFITTING 1/8 in. x 1/4 in. I.D. Brass Hose Barb Reducer Splicer Fittings (50-Pack) HF3913R040250 - The Home Depot
1/4" Adaptor – 64 Audio
316 Stainless Steel, 1/4 in x 1/8 in Fitting Pipe Size, Reducing Adapter - 1DFX8|4-2 RA-SS - Grainger
U.S. Solid Brass Hose Fitting, Adapter, 1/4" Barb x 1/8" NPT Male Pipe Fitting, 1/4"x 1/4", 3/8" x 1/4", 3/8"x 3/8",1/2"x 1/2", 3/4"x 3/4" - U.S. Solid