This is a Waterproof Vent Plug or Automatic Exhaust Breather Valve with an M20 size. (M20x1.5-10)

• Material: Nylon PA66
  • Crafted from durable Nylon PA66, ensuring long-lasting performance in harsh environments.
• Protection Degree: IP68-10Bar
  • IP68-rated for waterproofing, withstanding pressures up to 10 bar for reliable sealing.
• Working Temperature: Static -40°C ~ 120°C
  • Operates efficiently in a wide range of temperatures, from -40°C to 120°C, suitable for diverse climates.
• Function: Vent, Heat Dissipation
  • Ventilation and heat dissipation functions extend equipment life in challenging conditions.
• Air permeability: >4500ml/min@70mbar
• Thread length: 10mm
• Total length: 18mm
• Thread diameter: 20mm
• Wrench size: 27mm