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STI SSP9SÿSTI SSP9SÿSTI SSP9S
Part #STI SSP9S FIRE STOP INTUMESCENT PUTTY PADS 9x9x3/16 SpecSeal®, SSP9S, Fire Stop Putty, Intumescent, Series: SSP, Pad Container, 0.99 lb Net Weight, Red, -10 to 120 deg F
MFG #SSP9S
700 in Stock. More available 04/28/2026
$10.45/EA
Regular Price: $11.32/EA, you save $0.87 (8%)
STI SIL300ÿSTI SIL300
Part #STI SIL300 SILICONE SEALANT 10.1 OZ. TUBE 18.2 CU. IN. (300 ML) SpecSeal® Firestop Sealant, Non-Halogenated Silicone, Series: SIL, Tube Container, 10.1 oz Container, Composition: Octamethylcyclo-Tetrasiloxane, Paste Form, 50 to 60 min Appl
MFG #SIL300
2 in Stock. More available 04/28/2026
$32.12/EA
STI CF34ÿSTI CF34
Part #STI CF34 CLOSET FLANGE FIRESTOP GASKET SpecSeal® Closet Flange Firestop Gasket, Specifications Met: ASTM E814, ANSI/UL 1479, CAN/ULC-S115, Rubber, Red, 1/4 in THK
MFG #CF34
10 in Stock. More available 04/28/2026
$30.69/EA
STI LCI300ÿSTI LCI300ÿSTI LCI300
Part #STI LCI300 FIRESTOP INTUMESCENT SEALANT STANDARD GRADE 10.1OZ TUBE 18.2CUIN PALE RED 3HR SpecSeal®, LCI300, Firestop Sealant, Intumescent, Series: LCI, Tube Container, 10.1 oz Container, Water Base, Composition: Aluminum Trihydrate, Sulfur
MFG #LCI300
307 in Stock. More available 04/16/2026 and 04/28/2026
$15.76/EA
STI EZDP33FWSÿSTI EZDP33FWSÿSTI EZDP33FWS
Part #STI EZDP33FWS EZ PATH FIRESTOP KIT WITH WALL PLATES EZ-Path®, EZDP33FWS, Fire Barrier Square Pathway Kit, Series: 33 Series, Squared Shape, 10-1/2 in Length, 3 in Width, 3 in Height, Fire Rating: 1 to 4 hr, Specifications Met: ASTM E814, F
MFG #EZDP33FWS
6 in Stock. More available 04/28/2026
$268.16/EA
STI FSR100ÿSTI FSR100
Part #STI FSR100 READY SLEEVE 1" SPLIT FIRESTOP SLEEVE SpecSeal®, FSR100, Split Firestop Sleeve Kit, Series: FSR, 1 in Length, Specifications Met: ASTM E 814, UL 1479, CAN/ULC S115, cUL Listed, Red, Zinc Plated Steel
MFG #FSR100
1 in Stock. More available 04/28/2026
$156.44/EA
STI FSR200ÿSTI FSR200
Part #STI FSR200 READY SLEEVE 2" SPLIT FIRESTOP SLEEVE SpecSeal®, FSR200, Split Firestop Sleeve Kit, Series: FSR, 2 in Length, Specifications Met: ASTM E 814, UL 1479, CAN/ULC S115, cUL Listed, Red, Zinc Plated Steel
MFG #FSR200
1 in Stock. More available 04/28/2026
$176.18/EA
STI SSB24ÿSTI SSB24ÿSTI SSB24
Part #STI SSB24 FIRESTOP PILLOWS 2X4X9 SpecSeal®, SSB24, Intumescent Firestop Pillow, Series: SSB, 9 in Length, 2 in Width, 4 in Height, Fire Rating: 4 hr, Specifications Met: ASTM E 814, Red, Intumescent
MFG #SSB24
101 in Stock. More available 04/28/2026
$24.51/EA
STI LC150ÿSTI LC150ÿSTI LC150
Part #STI LC150 ENDOTHERMIC SEALANT 10.1 OZ. TUBE 18.2 CU. IN. (300 ML) SpecSeal® Firestop Sealant, Endothermic Flexible, Series: LC Series, Tube Container, 10.1 oz Container, Latex/Water Base, Composition: Aluminum Trihydrate, Mineral Spirits a
MFG #LC150
24 in Stock. More available 04/28/2026
$16.13/EA
STI FS200ÿSTI FS200
Part #STI FS200 READY SLEEVE 2" FIRESTOP SLEEVE SpecSeal®, FS200, Fire Barrier Sleeve Kit, Series: FS Series, 2 in Length, Specifications Met: ASTM E 814, UL 1479, CAN/ULC S115, cUL Listed, Red, Zinc Plated Steel
MFG #FS200
26 in Stock. More available 04/28/2026
$76.29/EA
STI EP45ÿSTI EP45ÿSTI EP45
Part #STI EP45 POWERSHIELD INSERTS 4-1/4" X 4-1/4" X 1/8" SpecSeal&#xC2;&#xAE;, EP45, Firestop Pad, For Use With: 4-11/16 in Square Boxes, Specifications: 350 deg F Expansion Begins, 350 to >1000 deg F Expansion Range, <130 deg F Service Temperature, 64 ST
MFG #EP45
10 in Stock. More available 04/16/2026 and 04/28/2026
$12.45/EA
STI SSB26ÿSTI SSB26ÿSTI SSB26
Part #STI SSB26 FIRESTOP PILLOW 2" X 6" X 9" SpecSeal&#xC2;&#xAE;, SSB26, Firestop Pillow, Series: SSB, 9 in Length, 6 in Width, 2 in Height, Fire Rating: 4 hr, Specifications Met: ASTM E814, CAN/ULC S115, FM Approved, UL 1479, Red
MFG #SSB26
1 in Stock. More available 04/28/2026
$28.60/EA
STI SSP100ÿSTI SSP100ÿSTI SSP100
Part #STI SSP100 FIRESTOP INTUMESCENT NON HARDENING PUTTY 36CUIN TUBE SpecSeal&#xC2;&#xAE;, SSP100, Firestop Putty, Intumescent, Series: SSP, Bar Container, 36 cu-in Container, Composition: Aluminum Trihydrate/Formaldehyde Polymer with Ammonia, Phenol, Put
MFG #SSP100
20 in Stock. More available 04/28/2026
$56.01/EA
STI SSP4SÿSTI SSP4SÿSTI SSP4S
Part #STI SSP4S FIRE STOP INTUMESCENT PUTTY PADS 7.25x7.25x3/16 SpecSeal&#xC2;&#xAE;, SSP4S, Fire Stop Putty, Intumescent, Series: SSP, Pad Container, 0.59 lb Net Weight, Red, -10 to 120 deg F
MFG #SSP4S
2928 in Stock. More available 04/28/2026
$8.37/EA
STI EZP544WVÿSTI EZP544WV
Part #STI EZP544WV EZPATH VERT MULTI GANG WALL BRACKET KIT STI&#xC2;&#xAE; EZ-Path&#xC2;&#xAE; Wall Bracket Kit, Multi-Gang Vertical Rectangular, Series: EZP, For Use With: EZ-Path&#xC2;&#xAE; 44+ Series EZD44S2 Fire Rated Pathway, Specifications: 4 hr Fir
MFG #EZP544WV
1 in Stock. More available 04/28/2026
$454.65/EA
STI SSAMWÿSTI SSAMW
Part #STI SSAMW MINERAL WOOL 2'X4'X1.5" BOARD STI&#xC2;&#xAE; Mineral Board, Rectangular, Series: SSA, For Use With: Fire Barrier Spray, Tan, 48 in L x 1-1/2 in W x 24 in H Dimensions
MFG #SSAMW
3 in Stock. More available 04/28/2026
$88.48/EA
STI SSP28ÿSTI SSP28ÿSTI SSP28
Part #STI SSP28 FIRE BARRIER MOLDABLE PUTTY STICK INTUMESCENT 24 CUBIC INCH SpecSeal&#xC2;&#xAE;, SSP28, Fire Stop Putty, Intumescent, Series: SSP, Tube Container, 24 cu-in Container, 1.85 lb Net Weight, Composition: Aluminum Trihydrate, Crystalline Silica
MFG #SSP28
52 in Stock. More available 04/16/2026 and 04/28/2026
$38.05/EA
STI CS1628ÿSTI CS1628ÿSTI CS1628
Part #STI CS1628 COMPOSITE SHEET 16" X 28" SpecSeal&#xC2;&#xAE; Intumescent Composite Sheet, Lightweight, Series: CS Series, 28 in Length, 16 in Width, 0.1 in Height, Fire Rating: Up to 4 hr, Specifications Met: ASTM E814, UL 1479, CAN/ULC-S115, UL R14288,
MFG #CS1628
STI EZP144FÿSTI EZP144F
Part #STI EZP144F 44 SERIES - SPLIT FLOOR PLATE PACK STI&#xC2;&#xAE; EZ-Path&#xC2;&#xAE; Split Floor Plate, Square, Series: EZP, For Use With: EZ-Path&#xC2;&#xAE; 44+ Series EZD44S2 Fire Rated Pathway, Specifications: 4 hr Fire Resistance Rating, -10 to 12
MFG #EZP144F
STI RCM33ÿSTI RCM33
Part #STI RCM33 33 SERIES - ONE PAIR (2) RADIUS CONTROL MODULES STI&#xC2;&#xAE; EZ-Path&#xC2;&#xAE; Radius Control Module, Series: RCM, For Use With: EZ-Path&#xC2;&#xAE; 33 Series EZD33FWS Fire Rated Pathway and Fire Barrier Device, Specifications: 4 hr Fi
MFG #RCM33
STI RTC350ÿSTI RTC350
Part #STI RTC350 3" TO 4" RANGE TAKING COLLAR SpecSeal&#xC2;&#xAE; Firestop Collar, Adjustable Range-Taking, Series: RTC, For Pipe Size: 3 in, For Use With: Plastic Pipe, Silver, Galvanized Steel
MFG #RTC350
STI EW2420ÿSTI EW2420ÿSTI EW2420ÿSTI EW2420
Part #STI EW2420 E-WRAP ENDOTHERMIC WRAP 20 X 2 ROLL E-Wrap&#xC2;&#xAE; Endothermic Wrap, 20 ft Length, 24 in Width, Fire Rating: 2 hr, Specifications Met: ASTM E1725, ASTM E814, cULus Listed, ETL Listed, UL File No R14288, UL 1479, UL 1489, Silver
MFG #EW2420
STI EZDP733GKÿSTI EZDP733GKÿSTI EZDP733GK
Part #STI EZDP733GK 33 SERIES 7 PATTHWAYS KIT W/ PAIR OF SEVEN GANG PLATES STI&#xC2;&#xAE; EZ-Path&#xC2;&#xAE; Pathway Plate Kit, 7-Gang Rectangular, Series: 33 Series EZDP, Rectangular Shape, 24-1/4 in Length, 6-1/4 in Width, 8-1/2 in Height, Fire Rating:
MFG #EZDP733GK
STI SSC600ÿSTI SSC600
Part #STI SSC600 FOR 6.0 DIA. PLASTIC PIPE SpecSeal&#xC2;&#xAE; Intumescent Firestop Collar, Series: SSC, For Pipe Size: 6 in, For Use With: Plastic Pipe, Galvanized Steel
MFG #SSC600
STI SSP9SÿSTI SSP9SÿSTI SSP9S
Part #STI SSP9S FIRE STOP INTUMESCENT PUTTY PADS 9x9x3/16 SpecSeal&#xC2;&#xAE;, SSP9S, Fire Stop Putty, Intumescent, Series: SSP, Pad Container, 0.99 lb Net Weight, Red, -10 to 120 deg F
MFG #SSP9S
700 in Stock. More available 04/28/2026
$10.45/EA
Regular Price: $11.32/EA, you save $0.87 (8%)
STI SIL300ÿSTI SIL300
Part #STI SIL300 SILICONE SEALANT 10.1 OZ. TUBE 18.2 CU. IN. (300 ML) SpecSeal&#xC2;&#xAE; Firestop Sealant, Non-Halogenated Silicone, Series: SIL, Tube Container, 10.1 oz Container, Composition: Octamethylcyclo-Tetrasiloxane, Paste Form, 50 to 60 min Appl
MFG #SIL300
2 in Stock. More available 04/28/2026
$32.12/EA
STI CF34ÿSTI CF34
Part #STI CF34 CLOSET FLANGE FIRESTOP GASKET SpecSeal&#xC2;&#xAE; Closet Flange Firestop Gasket, Specifications Met: ASTM E814, ANSI/UL 1479, CAN/ULC-S115, Rubber, Red, 1/4 in THK
MFG #CF34
10 in Stock. More available 04/28/2026
$30.69/EA
STI LCI300ÿSTI LCI300ÿSTI LCI300
Part #STI LCI300 FIRESTOP INTUMESCENT SEALANT STANDARD GRADE 10.1OZ TUBE 18.2CUIN PALE RED 3HR SpecSeal&#xC2;&#xAE;, LCI300, Firestop Sealant, Intumescent, Series: LCI, Tube Container, 10.1 oz Container, Water Base, Composition: Aluminum Trihydrate, Sulfur
MFG #LCI300
307 in Stock. More available 04/16/2026 and 04/28/2026
$15.76/EA
STI EZDP33FWSÿSTI EZDP33FWSÿSTI EZDP33FWS
Part #STI EZDP33FWS EZ PATH FIRESTOP KIT WITH WALL PLATES EZ-Path&#xC2;&#xAE;, EZDP33FWS, Fire Barrier Square Pathway Kit, Series: 33 Series, Squared Shape, 10-1/2 in Length, 3 in Width, 3 in Height, Fire Rating: 1 to 4 hr, Specifications Met: ASTM E814, F
MFG #EZDP33FWS
6 in Stock. More available 04/28/2026
$268.16/EA
STI FSR100ÿSTI FSR100
Part #STI FSR100 READY SLEEVE 1" SPLIT FIRESTOP SLEEVE SpecSeal&#xC2;&#xAE;, FSR100, Split Firestop Sleeve Kit, Series: FSR, 1 in Length, Specifications Met: ASTM E 814, UL 1479, CAN/ULC S115, cUL Listed, Red, Zinc Plated Steel
MFG #FSR100
1 in Stock. More available 04/28/2026
$156.44/EA
STI FSR200ÿSTI FSR200
Part #STI FSR200 READY SLEEVE 2" SPLIT FIRESTOP SLEEVE SpecSeal&#xC2;&#xAE;, FSR200, Split Firestop Sleeve Kit, Series: FSR, 2 in Length, Specifications Met: ASTM E 814, UL 1479, CAN/ULC S115, cUL Listed, Red, Zinc Plated Steel
MFG #FSR200
1 in Stock. More available 04/28/2026
$176.18/EA
STI SSB24ÿSTI SSB24ÿSTI SSB24
Part #STI SSB24 FIRESTOP PILLOWS 2X4X9 SpecSeal&#xC2;&#xAE;, SSB24, Intumescent Firestop Pillow, Series: SSB, 9 in Length, 2 in Width, 4 in Height, Fire Rating: 4 hr, Specifications Met: ASTM E 814, Red, Intumescent
MFG #SSB24
101 in Stock. More available 04/28/2026
$24.51/EA
STI LC150ÿSTI LC150ÿSTI LC150
Part #STI LC150 ENDOTHERMIC SEALANT 10.1 OZ. TUBE 18.2 CU. IN. (300 ML) SpecSeal&#xC2;&#xAE; Firestop Sealant, Endothermic Flexible, Series: LC Series, Tube Container, 10.1 oz Container, Latex/Water Base, Composition: Aluminum Trihydrate, Mineral Spirits a
MFG #LC150
24 in Stock. More available 04/28/2026
$16.13/EA
STI FS200ÿSTI FS200
Part #STI FS200 READY SLEEVE 2" FIRESTOP SLEEVE SpecSeal&#xC2;&#xAE;, FS200, Fire Barrier Sleeve Kit, Series: FS Series, 2 in Length, Specifications Met: ASTM E 814, UL 1479, CAN/ULC S115, cUL Listed, Red, Zinc Plated Steel
MFG #FS200
26 in Stock. More available 04/28/2026
$76.29/EA
STI EP45ÿSTI EP45ÿSTI EP45
Part #STI EP45 POWERSHIELD INSERTS 4-1/4" X 4-1/4" X 1/8" SpecSeal&#xC2;&#xAE;, EP45, Firestop Pad, For Use With: 4-11/16 in Square Boxes, Specifications: 350 deg F Expansion Begins, 350 to >1000 deg F Expansion Range, <130 deg F Service Temperature, 64 ST
MFG #EP45
10 in Stock. More available 04/16/2026 and 04/28/2026
$12.45/EA
STI SSB26ÿSTI SSB26ÿSTI SSB26
Part #STI SSB26 FIRESTOP PILLOW 2" X 6" X 9" SpecSeal&#xC2;&#xAE;, SSB26, Firestop Pillow, Series: SSB, 9 in Length, 6 in Width, 2 in Height, Fire Rating: 4 hr, Specifications Met: ASTM E814, CAN/ULC S115, FM Approved, UL 1479, Red
MFG #SSB26
1 in Stock. More available 04/28/2026
$28.60/EA
STI SSP100ÿSTI SSP100ÿSTI SSP100
Part #STI SSP100 FIRESTOP INTUMESCENT NON HARDENING PUTTY 36CUIN TUBE SpecSeal&#xC2;&#xAE;, SSP100, Firestop Putty, Intumescent, Series: SSP, Bar Container, 36 cu-in Container, Composition: Aluminum Trihydrate/Formaldehyde Polymer with Ammonia, Phenol, Put
MFG #SSP100
20 in Stock. More available 04/28/2026
$56.01/EA
STI SSP4SÿSTI SSP4SÿSTI SSP4S
Part #STI SSP4S FIRE STOP INTUMESCENT PUTTY PADS 7.25x7.25x3/16 SpecSeal&#xC2;&#xAE;, SSP4S, Fire Stop Putty, Intumescent, Series: SSP, Pad Container, 0.59 lb Net Weight, Red, -10 to 120 deg F
MFG #SSP4S
2928 in Stock. More available 04/28/2026
$8.37/EA
STI EZP544WVÿSTI EZP544WV
Part #STI EZP544WV EZPATH VERT MULTI GANG WALL BRACKET KIT STI&#xC2;&#xAE; EZ-Path&#xC2;&#xAE; Wall Bracket Kit, Multi-Gang Vertical Rectangular, Series: EZP, For Use With: EZ-Path&#xC2;&#xAE; 44+ Series EZD44S2 Fire Rated Pathway, Specifications: 4 hr Fir
MFG #EZP544WV
1 in Stock. More available 04/28/2026
$454.65/EA
STI SSAMWÿSTI SSAMW
Part #STI SSAMW MINERAL WOOL 2'X4'X1.5" BOARD STI&#xC2;&#xAE; Mineral Board, Rectangular, Series: SSA, For Use With: Fire Barrier Spray, Tan, 48 in L x 1-1/2 in W x 24 in H Dimensions
MFG #SSAMW
3 in Stock. More available 04/28/2026
$88.48/EA
STI SSP28ÿSTI SSP28ÿSTI SSP28
Part #STI SSP28 FIRE BARRIER MOLDABLE PUTTY STICK INTUMESCENT 24 CUBIC INCH SpecSeal&#xC2;&#xAE;, SSP28, Fire Stop Putty, Intumescent, Series: SSP, Tube Container, 24 cu-in Container, 1.85 lb Net Weight, Composition: Aluminum Trihydrate, Crystalline Silica
MFG #SSP28
52 in Stock. More available 04/16/2026 and 04/28/2026
$38.05/EA
STI CS1628ÿSTI CS1628ÿSTI CS1628
Part #STI CS1628 COMPOSITE SHEET 16" X 28" SpecSeal&#xC2;&#xAE; Intumescent Composite Sheet, Lightweight, Series: CS Series, 28 in Length, 16 in Width, 0.1 in Height, Fire Rating: Up to 4 hr, Specifications Met: ASTM E814, UL 1479, CAN/ULC-S115, UL R14288,
MFG #CS1628
STI EZP144FÿSTI EZP144F
Part #STI EZP144F 44 SERIES - SPLIT FLOOR PLATE PACK STI&#xC2;&#xAE; EZ-Path&#xC2;&#xAE; Split Floor Plate, Square, Series: EZP, For Use With: EZ-Path&#xC2;&#xAE; 44+ Series EZD44S2 Fire Rated Pathway, Specifications: 4 hr Fire Resistance Rating, -10 to 12
MFG #EZP144F
STI RCM33ÿSTI RCM33
Part #STI RCM33 33 SERIES - ONE PAIR (2) RADIUS CONTROL MODULES STI&#xC2;&#xAE; EZ-Path&#xC2;&#xAE; Radius Control Module, Series: RCM, For Use With: EZ-Path&#xC2;&#xAE; 33 Series EZD33FWS Fire Rated Pathway and Fire Barrier Device, Specifications: 4 hr Fi
MFG #RCM33
STI RTC350ÿSTI RTC350
Part #STI RTC350 3" TO 4" RANGE TAKING COLLAR SpecSeal&#xC2;&#xAE; Firestop Collar, Adjustable Range-Taking, Series: RTC, For Pipe Size: 3 in, For Use With: Plastic Pipe, Silver, Galvanized Steel
MFG #RTC350
STI EW2420ÿSTI EW2420ÿSTI EW2420ÿSTI EW2420
Part #STI EW2420 E-WRAP ENDOTHERMIC WRAP 20 X 2 ROLL E-Wrap&#xC2;&#xAE; Endothermic Wrap, 20 ft Length, 24 in Width, Fire Rating: 2 hr, Specifications Met: ASTM E1725, ASTM E814, cULus Listed, ETL Listed, UL File No R14288, UL 1479, UL 1489, Silver
MFG #EW2420
STI EZDP733GKÿSTI EZDP733GKÿSTI EZDP733GK
Part #STI EZDP733GK 33 SERIES 7 PATTHWAYS KIT W/ PAIR OF SEVEN GANG PLATES STI&#xC2;&#xAE; EZ-Path&#xC2;&#xAE; Pathway Plate Kit, 7-Gang Rectangular, Series: 33 Series EZDP, Rectangular Shape, 24-1/4 in Length, 6-1/4 in Width, 8-1/2 in Height, Fire Rating:
MFG #EZDP733GK
STI SSC600ÿSTI SSC600
Part #STI SSC600 FOR 6.0 DIA. PLASTIC PIPE SpecSeal&#xC2;&#xAE; Intumescent Firestop Collar, Series: SSC, For Pipe Size: 6 in, For Use With: Plastic Pipe, Galvanized Steel
MFG #SSC600