Parker - Industrial Pipe Adapter: 3/4″ Female Thread, 1-5/16-12 Male Thread, Male Straight Thread O-Ring x Female NPTF - 72517931 - MSC Industrial Supply
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
LTWFITTING 5/16 in. ID Hose Barb x 1/4 in. MIP Lead Free Brass Adapter Fitting (5-Pack) HFLF39185405 - The Home Depot
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
JMF Company 5/16 in. Flare X 1/4 in. D Male Brass Inverted Flare Adapter - Ace Hardware
Amazon.com: R410A Adapter 5/16 inches SAE Female to 1/4 inches SAE Male Flare for Air Conditioners HVAC, 2 Straight Adapter + 2 Angled Adapter : Automotive
Adapter Fittings 1/4 NPT to 5/16 2pk | Allstar Performance
200DD – 5/16 X 1/4 Inverted Flare X Male Connector – Couplings Company
1/4" Male NPT x 5/16" Compression Brass Adapter
LTWFITTING 5/16 in. Flare x 1/4 in. MIP Brass Adapter Fitting (5-Pack) HF485405 - The Home Depot
5/16"-24 to 1/4"-20 Polisher Buffer Backing Plate Adapter – Tool Guy Republic
Amazon.com: R410A Adapter 5/16" SAE Female Quick Couplers to 1/4" SAE Male Flare, 2 PC 45 Degree Angled Charging Vacuum Adapter, Used for R410a with Thimble Mini Split System, HVAC and Refrigeration
LTWFITTING 5/16 in. OD Flare x 1/4 in. FIP Brass Adapter Fitting (5-Pack) HF465405 - The Home Depot