USA Industrials ZUSA-TF-QD-A-6 Plastic Quick-Disconnect Tube Couplings; Type: In-Line Hose Barb-Female Socket; In-Line Hose Barb-Female Socket ; Nominal Flow Size: 1/8 (Inch); Tube Inside Diameter: 1/4 (Inch); Material: Acetal ; O-Ring Material: EPDM