Amazon.com: Celestial 3/8" Male Flare by 1/2" Female NPT Coupling, Brass Adapter for Outdoor Gas Fire Pits, Fireplaces, and Grills : Patio, Lawn & Garden
Coupling union between brass SAE flare and ODF copper tube is used in refrigerant circles to reduce jobs by cold connectioning - AliExpress
Everbilt 1/2 in. x 3/8 in. Flare Brass Reducing Coupling Fitting 801459 - The Home Depot
Anderson Metals Part # 04046-0404 - Anderson Metals 1/4 In. Flare X 1/4 In. Fip Coupling (10/Bag) - Brass Couplings - Home Depot Pro
Everbilt 3/8 in. Flare Brass Coupling Fitting 801529 - The Home Depot
Proline Series 1/2-in x 1/2-in Threaded Flare x Fip Adapter Coupling Fitting in the Brass Fittings department at Lowes.com
Lot of 10 Brass Swivel Flared Coupling 1/2" Female Copper Tubing | eBay
Proline Series 3/8-in x 1/2-in Threaded Flare x Fip Adapter Coupling Fitting in the Brass Fittings department at Lowes.com