STI Ready® Firestop Grommet

Eliminate Sleeves, Sealant, And Putty With This Firestop Grommet

We Guarantee to Have the Best Price

What's special about this grommet?

  • Used for single-cable penetrations instead of putty, sleeves, or foam, with no mess to clean up
  • Made with Ultem® premium, plenum-grade material for exceptional flame and heat resistance
  • Ul logoCan be used with existing cables that are already in the wall, for a quick and easy retrofit
  • Click for More Features

Do you have one low voltage cable going through a wall that you want to protect from fire or smoke? The Firestop Grommet is the item you need. Installation is quick and eas,y with just one snap and no messy foams or putties to clean up.


STI-RFG1 1-5/8" 1-9/16" 1-9/16" Red 1 Blister Pack (10 Grommets per blister pack)
  • 2-piece, snap-together design makes for quick installation
  • A soft inner core conforms to the cable for a smoke-sealed and firestopped application
  • Installation is a breeze: just drill a hole, run your cable, snap the grommet around the cable, then press it into the wall
  • For use in gypsum board or drywall construction, with low voltage cables that have an OD of up to 0.27 inches (7 mm)
  • Tested to meet the exacting criteria of ASTM E814 (UL1479) and CAN/ULC S115



Part # STI-RFG1
Color Red
Weight 0.01 lbs (5g)
Shelf Life N/A
Plenum Grade Yes
V.O.C. Content N/A
Leakage Rating Less Than 1 CFM (ANSI/UL1479)
In-Service Temp <130° F (54° C)





STI 2 inch split Firestop Sleeve installedSTI Split Firestop Sleeve Kits
Ready™ Split Sleeves are designed with a split pathway and come with wall plates which allow them to be implemented around existing cable bundles. These sleeves weigh half of what competing threaded products do, and have fewer parts, which make them the product you need when you are working on ladders or in cramped spaces in rated and non-rated construction zones.
STI firestop pillow applicationSTI SpecSeal® Firestop Pillow
Able to expand in all directions when exposed to extreme heat, these easy to use intumescent pillows block the spread of smoke and flame through wall penetrations and construction gaps.
STI Composite SheetSTI Firestop SpecSeal® Composite Sheets
Specifically created to firestop large and medium-sized openings, this intumescent composite sheet is easy to cut with sheet metal cutting tools, and provides 2 hours of fire protection.
firestop putty, SP100STI SpecSeal SSP Putty
An excellent product for retrofit jobs and cabling that call for a firestopping sealant. It is easy to apply and meets the highest quality standards. This 36 cubic inch bar is all you need for metallic conduits, telephone, data or electrical power cable penetrations as well as a variety of sleeved and non-sleeved applications.
fire rated troffer coversTenmat Tool-less Fire Protection Troffer Covers
Designed to maintain the integrity of fire-rated ceilings in multi-story buildings, these troffer covers fit easily about ceiling-mounted light fixtures to provide up to 1 hour of smoke and flame blockage in the event of a fire.
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