INSTALLATION INSTRUCTIONS
Specified Technologies Inc.
Somerville, NJ 08876 USA
T: (800) 992-1180 • F: (908) 526-9623
www.stifirestop.com
Page 1 of 2
Warranty: www.stifirestop.com/legal/warranty
Made in USA • Printed in USA
ZIS1086 3579
1
3
2
4
Cut nominal 4 in. (102 mm)
diameter opening in wall.
Drill and insert four mounting
anchors into wall using flange
openings marked in step 2.
Insert device half into opening
and locate the flange mounting
holes. Remove sleeve.
x8
x8
Insert outer sleeve and secure
to wall. Repeat on opposing
side of wall using inner sleeve.
Note: When installing NEZ33 the EZ-Path
®
logo needs to be facing you in the
upright position and the arrows should be pointing to the top and bottom of the
device. For vertical installations, horizontal supports should be installed.
For more information on firestop installation, refer to ASTM E3157.
Parts Included (Not to Scale)
Option 1 - Single Device Installation
Series 33NEZ Smoke and Acoustical Pathway
(Part Numbers: NEZ33)
