Half Union Gas Adapter 3/8 Flare X 3/8 NPT Male Pipe Connector

Stainless Beverage Fittings - Straight Adapters - 3/8 NPT x 3/8 Male Flare

3/8 Male NPT x 3/8 Flare (SAE) Brass 45 Degree Elbow Adapter

1/4 Female Flare (SAE) x 3/8 Male Flare (SAE) Brass Adapter

Stainless Steel Hydraulic Tube Unions -3/8 x 3/8 MJIC

Natural Gas Quick Connect Fittings,3/8 Male Flare To 3/8 Male NPT 1/4 Male Pipe Adapter Brass Natural Propane Grill Hose Plug - AliExpress

Anderson Metals - 54048-0602 Brass Tube Fitting, Half-Union, 3/8 Flare x 1/8 Male Pipe: Flared Tube Fittings: : Industrial & Scientific

SAE 45-degree flare head tube connection on one side and a male NPT connection on the other For connecting and disconnecting two tubes more easily

Legines Brass Flared Half Union, SAE 45 Degree Flare Male Adapter 1/2 Tube OD x 3/8 NPT Male Pipe (Pack of 2)

2PCS 3/8 Inch Male Flare x 3/8 Inch Male Flare Fittings, Union Connector Brass Tube Coupler Pipe Flare Fitting

3/8-in x 3/8-in Threaded Union Fitting

Unions connect two lengths of tubing together, further lengthening the plumbing line. Constructed of lead-free brass, brass flare fittings are ideal for gasoline, grease, natural gas, and refrigeration/ac applications. The brass construction makes this fitting corrosion-resistant and is able to be used indoors and outdoors. Flare fittings can be used in conjunction with aluminum tubing, brass pipe, copper tubing & steel hydraulic tubing.

Proline Series 3/8-in x 1/4-in Threaded Union Fitting in Gold | FL-182B