Graco 1/4 in. x 1/4 in. Hose Connector Fitting 243025 - The Home Depot
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Pipe Adapter
Fuel Hose Fitting - Male Connector - 3/8 In. X 3/8 In. MNPT 785-406D: Advance Auto Parts
Mec Part # ME4355 - Mec 3/8 In. Female Flare Swivel X 3/8 In. Brass Hose Barb Low Pressure 2-Piece Adapter - Hose Barbs - Home Depot Pro