Connection plenum for S-20 and S-30 grilles. PE-20/21

Connection plenum for S-20 and S-30 grilles. PE-20/21

PE-20. Upper connection plenum, removable for attachment by clips to the grille.
Standard uninsulated finish and without flap at inlet.
Manufactured in galvanized steel sheet.

PE-21. Lateral connection plenum, removable for attachment by clips to the grille.
Standard uninsulated finish and without flap at outlet.
Manufactured in galvanized steel sheet.