A 4 inch System will require a 4 & 1/2 inch hole
minimum! Most people should drill a 5 inch
hole for the 4 inch Threaded Sleeve.
Pre-drill the hole in
advance. BE SURE to
drill the hole to the
(O.D.) of the System
you will be using.
Disassemble one side of the System.
and bushing so
that the sleeve will
protrude evenly on
both sides when
Feed the System into the hole you have pre-
drilled. Go below and install the other half of
application of the
requires the sleeve
to be packed (3 inch
depth) with mineral
wool batt insulation.
This keeps gravity from having any effect on
the intumescent putty.
If used horizontally, this system needs
no wool batt.
When the cables
destination, install a
minimum 1/2 inch
thickness of Unique
Putty per the vertical
This System used horizontally, needs a
minimum 1 inch thickness of putty.
Fill out and attach the documentation/warning
Don’t forget to take a
picture of your completed
installation for future
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