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If you’re sealing a fire-rated commercial door opening, the perimeter seal isn’t a “nice-to-have” - it’s part of the opening’s life-safety performance. Too many perimeter seals on the market are not certified, not tested to the standards inspectors look for, and can put the entire opening at risk of non-compliance.
The Hollow Metal Pro Screw-On Perimeter Bulb Seal is built for contractors, facility managers, and code-driven projects where performance and documentation matter. This product is designed for commercial hollow metal frames and delivers a tight, durable seal while supporting the compliance requirements demanded on rated openings.
Don’t get caught installing a perimeter seal that isn’t certified. When the job requires code compliance, documentation, and proven performance, Hollow Metal Pro is the safe choice.
This product is CERTIFIED by UL to both fire-test and positive pressure standards for application to rated openings:
Additionally, this seal is Air Infiltration Tested to ASTM E283 (Standard Test Method for Determining Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors) to support performance expectations for draft control in commercial openings.
Hollow Metal Pro focuses on compliance-driven performance - not being the cheapest option on the shelf. This product supportsANSI (American National Standards Institute) certified and IBC compliant project requirements, helping you meet code expectations while delivering a professional, long-lasting seal.
To make installation simple and contractor-friendly, Hollow Metal Pro provides multiple install resources:
Watch the full step-by-step installation video below. This video is fully responsive and will scale automatically for desktop, tablet, and mobile devices.
Direct Video Link: Watch the installation video on YouTube


Our specialists are just a phone call away. Call 866-232-5673 and we will gladly assist you!
