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Rectangular firestop passthrough for cables, 6.5 in overall height and 10.25 in overall length. Designed to seal openings in fire-rated walls and floors, maintaining fire and smoke resistance while allowing cable routing. No mounting plates included.

STI

STI NEZ33CK2 Firestop Passthrough for Cables, Rectangular, 6.5 in H x 10.25 in L

BrandSTI

CategoryFirestop Passthroughs for Cables

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Square metal firestop passthrough for cable penetrations through fire-rated walls and floors. Overall dimensions 3.69 in height, 6.31 in length, 4.88 in width. Includes two mounting plates for installation. Maintains fire-resistance rating of the barrier.

STI

STI EZDR200 Firestop Passthrough for Cables, Metal, Square, 3.69x6.31x4.88 in

BrandSTI

CategoryFirestop Passthroughs for Cables

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Rectangular wall mounting bracket for passthrough devices. Overall height 2 in, length 12 in, width 6 in. Used for routing cables or equipment through walls in commercial and industrial installations.

STI

STI EZP333W Rectangular Wall Mounting Bracket, 2 in H x 12 in L x 6 in W

BrandSTI

CategoryWall Mounting Brackets for Passthrough Devices

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Round firestop grommet for sealing cable penetrations through fire-rated walls and floors. Rated for 2-hour fire protection. Accepts cables up to 0.27 in diameter. Overall height 6.75 in, length 1.63 in, width 0.56 in.

STI

STI Firestop Grommet: Round, 2 hr, 6.75 in H, 1.63 in L, 0.56 in W, RFG1

BrandSTI

CategoryFirestop Grommets for Cables

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Rectangular wall mounting bracket for passthrough devices, rated for 4-hour fire protection. Overall dimensions: 6 in height, 18.5 in length, 2 in width. Used to support electrical or instrumentation enclosures through fire-rated walls in commercial and industrial applications.

STI

STI Wall Mounting Bracket for Passthrough Devices

BrandSTI

CategoryWall Mounting Brackets for Passthrough Devices

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Firestop collar for 2-inch plastic pipes, rated for 2-hour fire protection. Designed for use on common construction surfaces such as drywall, concrete, or wood. The collar expands when exposed to heat, sealing the pipe opening to prevent flame and smoke spread through fire-rated walls and floors.

STI

STI LCC200 Firestop Collar for 2 in Plastic Pipe, 2 Hour Rating

BrandSTI

CategoryFirestop Collars for Pipes

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This firestop collar is used to seal around plastic pipes penetrating fire-rated walls or floors. Constructed of metal and plastic, it expands when exposed to heat to block flames and smoke, preserving the fire-resistance rating of the barrier. Overall width is 5 inches.

STI

STI SSWRC2 Firestop Collar for Plastic Pipes, 5 in Width

BrandSTI

CategoryFirestop Collars for Pipes

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Round wall mounting bracket for passthrough devices. Overall height 2.13 in, overall length 6.25 in, overall width 7.5 in. Used to mount cables or components through walls in industrial and commercial installations.

STI

STI EZP133CW Round Wall Plate for Passthrough Devices

BrandSTI

CategoryWall Mounting Brackets for Passthrough Devices

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This firestop pillow is used to seal wall and floor penetrations in fire-rated assemblies. It provides passive fire protection by blocking openings around cables, pipes, and conduits. The pillow is red, non-interlocking, and has a 4-hour fire rating.

STI

STI Firestop Pillow SSB14, 9 in L x 1 in W, 4 hr Fire Rating, Red

BrandSTI

CategoryFirestop Pillows

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The STI FP400 is a red, non-interlocking firestop plug with a 4.64 in overall length and width. It is rated for 2-hour fire protection, used to seal openings in fire-rated walls and floors to prevent the spread of fire and smoke in commercial and industrial construction.

STI

STI FP400 Firestop Plug, 4.64 in, 2 hr Fire Rating, Red

BrandSTI

CategoryFirestop Plugs & Blocks

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Frequently asked questions

Common questions about STI from 3G Electric.

Does 3G Electric supply STI products?

Yes — 3G Electric (S) Pte. Ltd. supplies STI products. We stock the STI catalog and supply genuine factory-original products with full manufacturer warranty and technical support.

What STI products does 3G Electric stock?

STI industrial equipment and spare parts for commercial and industrial applications.

Where can I buy STI industrial equipment?

You can order STI products directly from 3G Electric. Commonly ordered items dispatch quickly from in-stock inventory. For non-stocked models or custom configurations, typical lead time is 2–6 weeks direct from the STI factory. Request a quote via our contact page for pricing and availability.