The vessel itself is insulated, and covered in sheet aluminum to protect the thermal insulation
from impact and weather-related damage. White-painted flanged “nozzles” protrude from the vessel
through the insulation to provide places for the level-sensing instrument to connect. You can see the two flanged remote seals (painted blue) where the armored (stainless steel) capillary tubes terminate. Note how the long capillary tube on the “wet” leg is neatly coiled to reduce the possibility of damage by snagging on any moving object.