Features: Pneumatic Air Pump Switches are widely used in swimming pools, spas, jacuzzis, bathrooms, outdoor machines, etc. Sturdy and durable: The switch of the pneumatic pool air pump is made of high-quality stainless steel and hose, which is corrosion-resistant. Easy installation: The switch can be used with pneumatic buttons for water and electricity separation and remote control purposes. Rated Current: 16A; Rated voltage: 125-250V. It has the advantage of being small and can be built into most motor junction boxes. Press the pneumatic button for the first time to activate the pneumatic switch. Release the air button and the switch will still remain in its initial state. After the second press of the pneumatic button and release, close the pneumatic switch. Specification: Rated Current: 16A Rated Voltage: 125-250V Material: Stainless Steel & Plastic Color: As Pictures Shown Size: Application. As shown in the picturesPipe Length: 1m/39.4inchPipe Inner Diameter: 3mm/0.12inPipe Outer Diameter: 6mm/0.23Quantity: 1 SetNote:Transition: 1cm=10mm=0.39inchNo retail package. Please allow 1-2cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Included: 1 x Button 1x1m1 x Pressure Switch (Other accessories shown in the picture are not included.)