Majestic Firestop FS338 is an innovative, high-performance firestop system designed to provide protection against the spread of fire and smoke in straight up flue applications. It features a unique patented design which ensures a fast, easy and secure fit. The firestop system is UL Classified and tested to withstand up to 4-hours of fire resistance. It is constructed with a combination of intumescent and non-combustible materials to provide superior fire protection. Majestic Firestop FS338 is designed for residential and commercial applications, and is backed by a 25-year manufacturer’s warranty. It is easy to install and requires minimal maintenance, making it an ideal choice for any building.

Majestic FS338 Firestop for Straight Up Flue provides a smart ventilation accessory for use with your Majestic fireplace.