This is the most compact way to attach a 1/2 OD HERMS coil to welded couplings in a HLT when the coil itself is just cut on the ends without a bend
Tube x NPT Male Elbow – Reliable Fluid Systems
Brass Compression Tube Pipe Fitting 90 Degree Elbow Adapter OD X 1/4 NPT Male
Fitting - Compression Fitting - NPT Male 1/2 to 1/2 Tube 90 Degree
316 Stainless Steel Tube Fittings Reducing Union Elbow - 316 stainless steel two ferrules tube fittings reducer union elbow, 316 stainless steel double ferrules compression tube fitting reducing union elbow, 316 ferrules
SAE Brass Compression Fittings - Female Elbows - 3/8COMPx1/2FNPT
FREE shipping over $99! Shop in stock stainless steel 90 degree male elbow compression tube fittings - 1/2 tube x 1/2 male NPT. 316 stainless steel
1/2 in. Tube O.D. x 1/2 in. MNPT - 90 Degree Male Elbow - Double Ferrule - 316 Stainless Steel Compression Tube Fitting
1/2 Tube X 1/2 MNPT 90-Degree Elbow - 316 Stainless Steel
Everbilt 3/8 in. O.D. Compression x 1/2 in. MIP 90-Degree Brass Elbow Adapter Fitting 800679 - The Home Depot
Struggling with my herms coil connections Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum
Compression Tube Fitting 1/2 Tube OD x 1/2 NPT Male Connector 316 St
1/2 OD Tube Stub x 1/2 Male NPT Adapter Stainless Steel 316
1/2 x 1/2 Compression x Male NPTF 90 Degree Forged Elbow Solid Brass – compressor-source