Sioux Chief Adapter 3/16 inch Hose Barb X 1/4 inch Male Fitting

3/16 Hose ID (Your hose should read 3/16 ID on the side) to 1/4 Npt male (thread measures 1/2 OD). Up to 250 PSI hot and cold.

3/16 Hose ID/Hose Barb to 1/4 Male NPT MIP MPT Straight Brass Fitting Fuel/Air/Water/Boat/Gas/Oil WOG

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

Anderson Metals 1/4 In. C x 1/4 In. C Brass Straight Needle Valve

LTWFITTING 5/16 Brass Hose Barb Splicer Fittings (10-Pack) , 50% OFF

Products Plumbing, Pipe, Tube & Hose Fittings, Tube & Hose Fittings

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SIOUX CHIEF Hose Barb Splicer - Brass - 3/16 x 3/16 903-120501