John Guest 1/4 Inch OD x 1/2 Inch NPT Male Connector, Push to Connect Plastic Plumbing Fitting, PP010824WP - Amazon.com
John Guest Speedfit 1/2 Inch CTS x 1/2 Inch NPT Push-fit Male Connector, Push to Connect Plastic Plumbing Fitting, White, PSEI012024P - Pipe Fittings - Amazon.com
Milton S-684-4 1/4" MNPT Male Tank Valve, includes Protective Caps (Pack of 2) - Arc Welding Accessories - Amazon.com
Amazon.com: LTWFITTING Brass Fitting Coupler 5/16-Inch Hose Barb x 1/4-Inch Male NPT Fuel Gas Water(Pack of 5) : Industrial & Scientific
Geesatis Male Threaded Pipe Fitting Flange Barb Thread Adapter Stainless Steel OD 3" Ferrule, Fit 2" NPT Thread (Silver) - Amazon.com
1/2" BSP Thread Hose Tail for 1/2" Hose Pipe Air Line Fitting Hydraulic FT031 - Amazon.com
John Guest Acetal Copolymer Tube Fitting, Flat End Adaptor, 3/8" Tube OD x 1/2" BSP Female (Pack of 10): Push To Connect Tube Fittings: Amazon.com: Industrial & Scientific
Highcraft GUHG01N34 Gas Connector Adpater Fitting with 1 in. O.D. Flare Thread x 1 in. MIP (TAPPED 3/4'' in.), Uncoated Stainless Steel, for HighBTU Gas Connectors - Amazon.com
Amazon.com: LTWFITTING Brass Fitting Coupler 5/16-Inch Hose Barb x 1/4-Inch Male NPT Fuel Gas Water(Pack of 5) : Industrial & Scientific
LASCO 17-4879 15/16-Inch Flare by 3/4-Inch Male Pipe Thread Brass Adapter - Pipe Fittings - Amazon.com
John Guest 1/4 Inch OD x 3/8 Inch NPT Straight Connector, Push to Connect Plastic Plumbing Fitting, PP010823WP - Pipe Fittings - Amazon.com
Amazon.com: Brass Male 3/8" x 1/4" BSP European Thread - Male x Female Reducing Bush Adapter Thread Reducer : Patio, Lawn & Garden
Amazon.com: KOOTANS 4-Pack Brass Pipe Fitting 1/8" NPT Female x 1/8" NPT Male x 1/8" NPT Female Street Tee Fitting, Metals Brass Pipe Hose Fitting : Industrial & Scientific
John Guest (PI481222S) Fixed Elbow 3/8" Tube X 1/4" NPT Gray - Pipe Fittings - Amazon.com
Eldon James N8NK Natural Kynar Pipe HEX Nipple, 1/2-14 NPT Thread (Pack of 10): Amazon.com: Industrial & Scientific
John Guest Acetal Copolymer Tube Fitting, Straight Adaptor, 1/2" Tube OD x 1/2" NPTF Male (Pack of 10): Push To Connect Tube Fittings: Amazon.com: Industrial & Scientific
Amazon.com: LTWFITTING Brass Fitting Coupler 5/16-Inch Hose Barb x 1/4-Inch Male NPT Fuel Gas Water(Pack of 5) : Industrial & Scientific