200DD – 5/16 X 1/4 Inverted Flare X Male Connector – Couplings Company
LTWFITTING 5/16 in. O.D. Comp x 1/4 in. MIP Brass Compression Adapter Fitting (5-Pack) HF685405 - The Home Depot
1/4" NPT Male To 5/16" Inverted Flare Female Adapter Fitting - BF54 - Affordable Street Rods
1/4" Female NPT x 5/16" Flare (SAE) Brass Adapter
Sufanic R410a Adapter 5/16 SAE F Quick Couplers To 1/4 SAE M Flare 5/16 SAE M To 1/4 SAE - Walmart.com
1/4 turn 5/16 conversion head adapter all copper r410 reducer with valve core air conditioning refilling connector - AliExpress
Adapter Fittings 1/4 NPT to 5/16 2pk | Allstar Performance
Hillman 6-Pack 5/16-in x 1/4-in Threaded Coupling Fitting in the Brass Fittings department at Lowes.com
Amazon.com: New AC R410A Brass Adapter Fitting 1/4" Male to 5/16" Female w/Valve Core Charging Hose to Pump : Automotive
5/16" Male Hex x 1/4" Male Square Adapter - BADT3 | Mac Tools
Apex® A-110 Socket and Ratchet Wrench Adapter, Imperial, Hex x Square Drive, 5/16 x 1/4 in Male Drive, Male x Male Adapter, Specifications Met: ASME B107.113, High Carbon Alloy Steel
JEGS 15945: Brass Hose Adapter for 5/16 in. to 1/4 in. Hose - JEGS
CONVERTER SCREW: 5/16"-24 to 1/4"-20
1/4" Male NPT x 5/16" Compression Brass Adapter
JB Industries A31665 5/16" SAE Male x 1/4" SAE Female Brass Adapter - Amazon.com