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Tear this page o and cut the rectangle out. Then place
on the duct work in desired position and trace the rect-
angle. Drill holes as indicated and then use a jig saw or
metal cutting snips to cut out the rectangle.
Step 4
Remove the wax
paper from the gasket.
Step 5
Insert unit into
pre-cut hole.
Step 6
Drill the metal
tapping screws in to
hold unit in place.
Cut Out