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INSTALLATION INSTRUCTIONS

Specified Technologies Inc.

Somerville, NJ 08876 USA

T: (800) 992-1180 • F: (908) 526-9623

www.stifirestop.com

Page 2 of 2

Warranty:    www.stifirestop.com/legal/warranty

Made in USA • Printed in USA

ZIS1086 3579

1

3

2

Position and mount gang plate 

to wall. For 2 gang plate, fasten 

on 16” (41 cm) centers. For 4 

gang plate, fasten on 24” (61 cm) 

centers.

Drill a 4” (102 mm) diameter 

hole in wall assembly using 

existing openings in gang plate 

as a guide for each device 

required. 

Insert outer sleeve in opening and 

attach to gang plate. 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)

Devices not included in Part No. NEZP233 and NEZP433

Option 2 - Gang Plate Installation

Series 33NEZ Smoke and Acoustical Pathway

(Part Numbers: NEZP233, NEZDP233-W, NEZP433, NEZDP433-W)

x2

x2

x8

x8

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