Contraindications:
The "rubber grommet" transformed when unpacking in a stiff PE grommet.
Unfortunately it has no sealing lips or beads which could be supple nestle around a mast tube and create.
These are at the upper opening burrs, which presumably also prevent sichers sealing the implementation.
The lower rain collar is too small, and of course much too stiff to conform to the shape of a bushing to adapt.
Conclusion:
The spout is produced for the garbage. The met in no way affect the requirement for a (rain) safe and permanent implementation of the mast tube.
Therefore, unfortunately, zero or 1 Forced star. (Actually, should such products can be provided with minus asterisk are only raw materials and resources destruction, as they fulfill no purpose.)
Only the shipper has delivered reliable and fast. Unfortunately, just garbage.
A few more details:
The top opening will probably be inside Ø 38 mm
The next larger diameter could be about 41 mm - the 40's tube just a little game.
The lower rain collar is compressed about 15 cm length
