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Silver steel firestop pathway device, seventeen inches wide, square profile, includes two gang plates

STI

STI NEZP233 Smoke Acoustic Pathway Device 17 in

SKU CH-N2NT-T28SC

A firestop pathway device measuring 17 inches wide that provides smoke and acoustic sealing for cable penetrations

  • Product colorSilver
  • Main materialHAWA
  • Smoke and acoustic protection with tested L ratings
  • 17 in width fits standard pathway openings
  • Silver steel construction resists corrosion and wear
  • Includes two gang plate packs for installation
  • Four inch length by five and a half inch height profile

Firestop Pathway for Smoke and Acoustic Protection

The STI NEZP233 is a silver steel pathway device measuring 17 inches wide. It provides a tested L-rated firestop solution for facility and traffic safety installations. The square-profile unit includes a two-gang plate pack for immediate integration. It is suited for contractors specifying code-compliant pathway penetrations.

Two-Gang Plate Pack Simplifies Installation

The bundled two-gang plate pack eliminates the need to source separate mounting hardware. Installers can secure the pathway and plates in a single step, reducing labour time on site. The pack matches the device dimensions for a flush fit. No additional accessories are required to complete the listed assembly.

17-Inch Width Determines Fit in Penetration Openings

The 17-inch width is the critical dimension that decides whether this device matches the structural opening. Verify the penetration size before ordering to ensure the square pathway seats correctly. An incorrect width will prevent proper firestop performance. No other specification overrides this sizing requirement.

How it compares

Measured against everything we stock in Traffic Cones, Signs & Safety Gear, at today’s prices. Recalculated every night.

Price $57.99
Typical for this category: the median of 1,503 items is $61.99.

Specifications

Product
Brand nameSTI
Product colorSilver
Size & build
Main materialHAWA

Questions about this item

Does the 17 in wide steel pathway need periodic re-sealing or gasket replacement after installation?

The steel pathway is a passive firestop component with no moving parts or consumable seals; no scheduled re-sealing or gasket replacement is required once it is correctly installed.

What limits continuous use of the NEZP233 pathway in a high-traffic cable run?

The device carries an L-rating for smoke and acoustical leakage; the practical limit is the maximum cable fill that still meets that tested leakage rating.

How much heat or noise does the STI NEZP233 generate when cables run through it all day?

It is a non-powered steel pathway with no fans or electronics, so it produces no heat and no audible noise regardless of how long cables remain in place.

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