3/8" FNPT X 3/8" BSPP Male Brass Adapter (NPT X BSPP)
1/4" 3/8" 1/2" 3/4" NPT BSPT Male x Female Brass Reducing Bushing Pipe Fittings Connectors Adapter Air Gas Fuel Water | Wish
Copper Pipe Fittings Gas | Copper Coupler Connector | Brass Connector 3 8 Gas - Brass - Aliexpress
Gas Pipe Adapter - 1/2 in. MPT x 3/8 in. Male Flare | MoreBeer
BrassCraft 1/2 in. Female Flare x 3/8 in. MIP Brass Gas Fitting Adapter AU6- 8-6 P - The Home Depot
Male Adapter Male Adapter Water Pipe | Male Gas Adapter Male Male - Brass Pipe Hex - Aliexpress
Breezliy 2 PCS Brass Tube Fitting, Half Union Gas Adapter 3/8" Flare x 1/2" NPT Male Pipe Connector - - Amazon.com
Brass 1/8 1/4 3/8 1/2 3/4 Female to Male Threaded Hex Bushing Reducer – Bangrui Tools
Brass 1/8 1/4 3/8 1/2 3/4 Female to Male Threaded Hex Bushing Reducer – Bangrui Tools
Amazon.com: Female 1/4 Flare to Male 3/8 Flare SAE 45 Propane Natural Gas Reducer Adapter Rv : Automotive
Acetylene/Fuel Gas Adapter - A Size Female to 1/4 NPT Male Acetylene/Fuel Gas Adapter "A"Female-1/4"Male | Arc-Zone.com [WES-126] - $11.96 : Arc-Zone.com, Welding Accessories Store
Swivel Flare Adapter - 1/4" FFL x 3/8" OD hose barb
Everbilt 3/8 in. Flare x 1/4 in. MIP Brass Adapter Fitting 801539 - The Home Depot