3/4"-10 x 5/8"-11 Hex Threaded Rod REDUCING Coupling Nut Female Zinc 1"W 1.5"L | eBay
3/4-10 to 5/8-11 x 1-1/2" (1"w) Reducer Hex Rod
LPS Sourcing Copper Reducer 3/4" x 5/8" O.D. (5/8" x 1/2" I.D. Nom) - 180857 | Lowe's Pro Supply
Reviews for Everbilt 5/8 in. Flare x 3/4 in. MIP Brass Adapter Fitting | Pg 3 - The Home Depot
PATIKIL 5/8 SAE Male x 3/4 SAE Female Brass Flare Tube Fitting, 3 Pack Pipe Fitting Reducer Gas Adapter Hex Coupling with PTFE Tape for HVAC Fuel Oil Air Natural Gas Line
Gates 5/8, 3/4 Inch Hose Connector/Reducer 28611 | O'Reilly Auto Parts
PATIKIL 5/8 SAE Male x 3/4 SAE Female Brass Flare Tube Fitting, 2 Pack
4" X 3" Copper Coupling Reducer with Stop — COPPERTUBINGSALES
PATIKIL 3/4 SAE Male x 5/8 SAE Female Brass Flare Tube Fitting, 3 Pack Pipe Fitting Reducer Gas Adapter Hex Coupling with Tape for Plumbing HVAC Fuel Oil Air Natural Gas Line
3/4"-10,5/8"-11 x W1" x L2" Coarse Thread Hex Rod Coupling Nut (Reducer) Stainless Steel 18-8 | ASMC.net
LTWFITTING 3/4 in. OD x 5/8 in. OD Flare Brass Reducing Coupling Fitting (5-Pack) HF42R121005 - The Home Depot