Cable penetration plate comes with one 4" riser tube. Additional riser tubes available (use part # CTS-CPP-4-R).
Gone are the days of your techs spending time building uni-strut
structures to hold a couple of conduits over a rack to feed cable down
from the plenum space. The CTS Suspended Ceiling Cable Penetration
System holds a 4" conduit in place and sits above a ceiling tile so you
can easily and discreetly hold up to 3 conduits in a 2' x 2' ceiling
tile.