3400: 3/8″ Male NPT to 1/2″ Male Flare Adapter | Fittings, Inc.
A-3-10MM Apex 3/8'' Socket And Ratchet Wrench Adapter, Metric
3/8" Male NPT x 3/8" Compression Brass Adapter
Tecmolog 3-way 3/8" and 1/2" 3 Way Adapter Tee Connector Stainless Steel 3/8" Water Line T Fitting Brushed Nickel, SBA020B - - Amazon.com
On-Stage MA-100 5/8 inch Female to 3/8 inch Male Microphone Thread Adapter | Sweetwater
2pcs 3/8" to 3/8" NPT Male Thread Brass Straight Hex Nipple Fast Coupler Pipe Hose Fitting Brass Fitting - - Amazon.com
K&M 217 Microphone Thread Adapter - 3/8 Inch Female to 5/8 Inch Male | Location Sound
U.S. Solid 2pcs Brass Pipe Fitting Adapter, Male Pipe x Female Pipe, 1/2" x 1/2", 1/2" x 3/4", 1/4"x 1/4", 1/4" x 3/8", 1/8" x 1/4", 1/8" x 1/8", 3/8" x 3/8" -
Proline Series 3/8-in x 3/8-in Threaded Male Adapter Union Fitting in the Brass Fittings department at Lowes.com
3 Piece Socket Adapter Set Increasing 3/8" 1/2" 3/4" Female 1/4" 3/8" 1/2" Male - Walmart.com
3/8" Male NPT x 1/2" Female NPT Brass Straight Adapter | Fastenal