Feature:

  1. 1. Highly corrosion resistant: precisely made of stainless steel.
  1. 2. Pressure resistant: spherical structure designed.
  2. 3. Double hinges designed: highly watertight, easy to open and close.
  1. 4. Can be fixed directly on the surface of other structures.
  2. 5. Made for water depth within 3.5 ~ 5 meters.

    (Measured from the internal bottom of the pipe)