3/8 Brass Hose Barb Nipple X 1/4 Male NPT Threads for CO2, Gas, Air PACK OF 4

Barb is 3/8". Base thread size is 1/4" Male NPT threads. Fits common plumbing, gas, and air fittings.

Nipple Brass Fittings at

Star Sales USA

SKS Accessory Hose Brass Nipple for DVSV for Racing Compressor 10137 for sale online

FasParts 1/4 Hose ID/Hose Barb to 3/8 Male NPT MIP

Brass 3/8 Barb X 1/4 NPT Male End Air Hose Pipe Fitting Threaded

Nipple Brass Fittings at

PlumbShop Brass Hose Barb Adapter, 1/4-in MIP x 3/8-in ID Hose

Star Sales USA

Pneumatic Plumbing Brass Pipe Fitting Male/Female Thread 1/8 1/4

Brass 3/8 Barb X 1/4 NPT Male End Air Hose Pipe Fitting Threaded

Edge Industrial 3/4 Hose ID to 3/8 Male NPT MNPT Straight Brass

ME540 to CGA870 H M Industrial Oxygen Tank Transfill Adapter 40 Stainless Hose

CAG-320 Brass Nut & Nipple W/Washer, Co2 Carbon Dioxide Fittings X

RaceFlux 90-Degree 3/8 Hose Barb to O-Ring Adapter Fitting, 3/8

1/4 X 5/16 45 Degree Hose Barb

Stainless Steel 1/2 Hose Barb, Barbed Thru-Bulk Head, Hex Bulkhead Straight Fitting

Stainless Hose Barb 25mm x 1 inch BSP Male

Dixon Valve & Coupling - Barbed Hose Fitting: 9/16″ x 3/8″ ID Hose