Top connection for connecting the supply or exhaust main pipe from the recuperator to the distribution box.
· Mounted in the central socket of the distribution box
· It enables the connection of pipes with diameters of 125, 160 and 200 mm
· Possibility to install spiro pipes and flexible flex-type pre-insulated pipes as well as others with diameters compatible with spiro pipes
· Gaskets ensure tight and rigid connection
· Grooves to help cut off unnecessary, unused part.