Amazon.com: 4R210-08 Hand Push Pull Control Valve, Pneumatic Air Valve, Aluminum 3-Way 2-Position 1/4BSPT Manual Pneumatic Solenoid Value Air Switch (1pc) : Industrial & Scientific
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3R210-08 Hand Push Pull Pneumatic Air Valve 3 Ways 2 Pos 1/4"BSPT & Connector | eBay
Amazon.com: Wolo 803-LV Lanyard Hand Pull Air Valve : Tools & Home Improvement