EZ Path® Smoke & Acoustical Pathway systems are designed to accelerate the installation of cable management for non-fire rated walls, floors and ceilings. Ready-to-install with built-in smoke sealing technology that automatically adjusts to cable loading, these patented systems feature self-adjusting cable throats while providing superior safety and installation speed compared to traditional caulking methods.

Key Features & Benefits

Zero maintenance – easy moves, adds and changes without removing seals
Built-in smoke sealing – automatically adjusts to installed cable loading from 0-100% fill
Superior acoustic ratings – STC 50-61 with minimal smoke leakage
Easy installation – horizontal and vertical mounting in 4″-8″ thick barriers
UL2043 plenum tested – approved for air handling spaces
Self-adjusting throat – accommodates varying cable bundle sizes automatically
Professional appearance – clean engineered profiles for commercial visibility
Retrofit capability – split-apart retrofit kits for existing installations

System Components & Applications

Series 44NEZ – Rectangular Profile

Dimensions – 7-1/2″ × 7-1/8″ (191mm × 181mm) for maximum cable density
Cable loading area – 13.044 in² capacity
STC rating – 50 (ASTM E90-09)
Smoke leakage – <1 CFM (0% fill), 1.5 CFM (100% fill)
Applications – High-density installations, data centers, server rooms

Series 33NEZ – Octagonal Profile

Dimensions – 4-1/2″ × 4-1/2″ (114mm × 114mm) compact design
Cable loading area – 6.7 in² capacity
STC rating – 61 (ASTM E90-09)
Smoke leakage – <1 CFM (0% fill), <2.5 CFM (100% fill)
Applications – Standard installations, offices, smaller cable bundles

Installation Applications

Commercial buildings – office cable penetrations and conference rooms
Data centers – server room cable management and network infrastructure
Educational facilities – classroom technology and campus networking
Healthcare facilities – patient room technology and medical equipment

Product Models & Specifications

Series 44NEZ Models

Series 33NEZ Models

Series Comparison Guide

When to Choose Series 44NEZ

High-density applications – data centers, server rooms, network closets
Maximum cable capacity – 13.044 in² loading area for large cable bundles
Rectangular installations – fits standard electrical boxes and wall plates
Gang configurations – 3-gang and 5-gang kits for high-capacity runs

When to Choose Series 33NEZ

Standard installations – offices, conference rooms, smaller cable runs
Superior acoustics – STC 61 rating for enhanced sound control
Compact footprint – 4-1/2″ × 4-1/2″ for space-constrained applications
Retrofit projects – split-apart retrofit kits for existing wall modifications

Direct Comparison

Performance Standards & Testing

Fire Safety & Acoustic Performance

ASTM E90-09 – sound transmission classification testing
STC ratings – Series 44NEZ: 50, Series 33NEZ: 61
UL2043 plenum testing – approved for air handling spaces
UL1479 air leakage – tested according to standard procedure
Non-halogenated materials – ABS/PC thermoplastic with low-smoke silicone
Temperature range – -30°F to 130°F (-34°C to 54°C) operating conditions