BrassCraft FRC13-6-8 3/8 in. O.D. Flare (9/16-24 Fine Thread) x 1/
Amazon.com: Hgzaccompany Brass Tube Flare Fittings,Union Connector Gas Adapter, BrassTube Coupler 3/8 inch Male Flare to 3/8 inch Male Flare 2 Pack : Industrial & Scientific
10108 (10-108) Midland SAE 45° Flare Fitting | Union | 3/8" Male SAE 45° Flare | Brass — HoseWarehouse
Everbilt 1/2 in. Flare Brass Coupling Fitting 801279 - The Home Depot
Uxcell G1/4 Male x 3/8" Male Brass Flare Tube Fitting Pipe Hose Fitting Adapter Connector, 2 Pack - Walmart.com