Threads into black pipe at the bottom of your gas system, for connecting to the 3/8'' female flare fitting on the end of your propane regulator hose. Look at the regulator picture at left. Made from brass.
highcraft G48S-1234 Flare x Male Reducing Adapter Pipe
highcraft G48S-1234 Flare x Male Reducing Adapter Pipe Fitting 1/2 O.D. x 3/4 MIP Brass : Everything Else
Departamentos - Adapter Gas 3/8 Flare X 1/2 Mpt
Male X Female Brass Flare Adapter at Rs 35/piece in Ahmedabad
Hgzaccompany Brass Tube Flare Fittings,Union Connector Gas Adapter,BrassTube Coupler 1/2 inch Male Flare to 1/2 inch Male Flare 2 Pack : : Industrial & Scientific
Companion Primus Fitting to 3/8 LH Adaptor
Burners & Gas Fittings
BrassCraft 1/2 in. MIP x 3/8 in. Flare x 36 in. Stainless Steel
Breezliy 2 PCS Brass Tube Fitting , Half Union Gas Adapter 3/8 Flare x 1/2 NPT Male Pipe Connector : : Home & Kitchen
JUWO 3/8 Flare x 1/2 NPT Male Brass Tube Fitting for Propane, LP and Natural Gas, Fuel, Half-Union (1-Pack) : Industrial & Scientific
Gas Pipe Adapter - 1/2 in. MPT x 3/8 in. Male Flare
Everbilt 1/2 in. Female Flare x 3/8 in. MIP Brass Gas Fitting
Jmf Gas Appliance Adapter 15/16 Flare X 1/2 Mpt Yellow Brass
, Features :, - [Material]: Heavy-duty brass,strong and durable,with corrosion resistance,high temperature ductility and low permeability,
Breezliy 3/8 Inch Male Flare x 3/8 Inch Male Flare Connector Gas Adapter Union BrassTube Coupler Pipe Flare Fitting (2PCS)