1. Features: 2. Occasion: Pneumatic air pump switches are widely used in swimming pools, spas, hot tubs, bathroom facilities, outdoor machinery, etc. 3. Sturdy and Durable: The swimming pool pneumatic air pump switch is made of stainless steel and hose, which is corrosion-resistant. 4. Easy Installation: The switch can be used with pneumatic buttons for water and electricity separation and remote control purposes. 5. Rated current: 16A; Rated voltage: 125-250V. It has the advantage of being small in size and can be built into most engine connection boxes. 6. Press the pneumatic button for the first time to start the pneumatic switch. 7. Release the air button and the switch will remain in the starting state. 8. After pressing the pneumatic button a second time and releasing, the pneumatic switch will close. 9. Specification: 10. Rated current: 16A 11. Rated voltage: 125-250V 12. Material: Stainless steel and plastic 13. Color: As shown 14. Size: Approximately as shown 15. Pipe length: 1m / 39.4in 16. Pipe inner diameter: 3mm / 0.12in 17. Pipe outer diameter: 6mm / 0.23in 18. Quantity: 1 set 19. Note: 20. Transition: 1cm = 10mm = 0.39inch 21. No retail packaging. 22. Please allow 1-2cm error due to manual measurement. Please ensure you are comfortable with this before purchasing. 23. Due to differences between monitor displays, the picture may not reflect the actual color of the item. Thank you! 24. Package includes: 25. 1 x Air Button 26. 1 x 1m Hose 27. 1 x Air Pressure Switch (other accessories shown are not included)