Amazon.com: U.S. Solid 1/4inches NPT Red Latching Mushroom Style Push Button 3 Way, 2 Position Pneumatic Control Mechanical Valve from U.S. Solid : Industrial & Scientific
200102 Push Button Valve - RamFlat
Mechanical Valve 1/8'' MOV-03A Spring Return Push button Pneumatic Control Valve - AliExpress
Garosa Push Button Pneumatic Valve 3 Way Pneumatic Control Mechanical Valve 2 Position Control Red Mushroom Push Button Air Pneumatic Switch Valve MOV-03 Air Mechanical Valve: Amazon.com: Industrial & Scientific