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Amazon.com: Quickun 3/8" Hose Barb 90 Degree Elbow L Fitting, Plastic 2 Way Equal Barbed Joint Splicer Mender Union Adapter Hose Fitting ( Pack of 5 ) : Industrial & Scientific
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Pneumatic Fittings Actuator Straight Type Plastic Hose Quick Couplings Air Valve Air Water Hose Connector Tube Pipe Connector - Pneumatic Parts - AliExpress