Product Description
2891AS-84 Pemko 2891AS Heavy Duty Perimeter Gasketing — 84" Head Section, Mill Aluminum, Silicone Insert
Double-door openings leak more air at the head than single doors simply because there's more length to seal — and a gap you can't feel with your hand still shows up on the energy bill. The Pemko 2891AS-84 is the same heavy duty aluminum-and-silicone head gasketing as the 36" version, sized for an 84" double-door head section in one piece instead of splicing shorter runs.
SKU Breakdown
| Segment | Code | What It Means |
|---|---|---|
| Series | 2891 | Heavy duty solid perimeter gasketing |
| Retainer | A | Aluminum retainer, mill finish |
| Insert | S | Silicone (Pemko Prene) insert |
| Length | 84 | 84" head section, standard double-door width |
Technical Specifications
| Specification | Value |
|---|---|
| SKU | 2891AS-84 |
| Series | 2891 |
| Length | 84" |
| Height | 1-3/4" |
| Width | 1/4" |
| Retainer Finish | Mill Finish Aluminum |
| Insert Material | Black Silicone |
| Application | Applied to header/frame across a double-door opening |
| Mounting | Supplied pre-drilled at 84"; sheet metal screws |
Compliance & Codes
UL listed to CAN/ULC-S104 and ANSI/UL10B. Complies with NFPA 80 and NFPA 252. Rated for hollow metal fire doors up to 3 hours and wood fire doors up to 90 minutes.
What's in the Box
One 84" length of 2891AS head gasketing.
Pro-Installer FAQ
Q: Do I need two 42" pieces or one 84" piece for a double door?
A: Order the 84" as one continuous piece — it comes pre-drilled for a clean run across both leaves without a seam in the middle.
Q: Is this fire-door rated?
A: Yes — UL listed to CAN/ULC-S104 and ANSI/UL10B, complies with NFPA 80/252 up to 3-hour hollow metal and 90-minute wood doors.
Q: What's different between the 36" and 84" versions?
A: Same profile and materials — length and drilling only. 84" ships pre-drilled for double-door head installs; 36" ships undrilled.
Product images are representative and may not depict the exact SKU, finish, or configuration listed. Always verify specifications before ordering.
Lock Depot sells brand new Pemko products with the full manufacturer warranty.
