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3M Fire Barrier Electrical Box Inserts EBI-4, 3.25 in x 3.25 in x 3/16 in
✅ In stock
F
Grade
Analysis Confidence
100%
Price verified Sep 28, 2026 10:57 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰At 53% above its usual rate, this is currently priced higher than what most shoppers have paid.
- 📉It has been quite a while since a more competitive price was available, lending today's offer solid comparative value.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
0/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
B2smile
🚚 Shipping
Free Shipping
Product Details
✓Protection of membrane penetrations for listed metallic boxes
✓Tested in accordance with ASTM E814 (UL 1479) (Certified as a Wall Opening Protective Material, UL Category CLIV)
✓STC rating of 62 when tested in a STC 62 rated wall assembly
✓Flexible
✓Convenient slits for access to wiring
✓Great for new construction and retro fit applications
✓Full adhesive backing for easy installation
✓For industrial/occupational use only. Not for consumer sale or use
⚙️ Specifications
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$402.30
$540.17
$16.06
$14.00
$95.77
5A+
615+
FB
CP 25WB+
MPP+
Fire-resistant wrap that consists of an inorganic fiber blanket encapsulated with a scrim-reinforced foil
Fire-rated duct wrap consisting of an inorganic fiber blanket encapsulated with a scrim-reinforced foil
Fireblock and draftstop used to help seal, fill, insulate and bond for non-rated residential and commercial construction
One-component, latex-based, intumescent sealant that dries to form a monolithic firestop seal
One-part firestop material used in various fire-rated assemblies, such as electrical box protection
Plenum Wrap
Duct Wrap, Duct Wrap Collar
Foam
Sealant
Moldable Putty Pad
