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The METAL-FAB 3MFS is a B-Vent Firestop Spacer designed for use in venting applications. It is manufactured by Olympic Steel and is UL listed for compatibility with several brands. This spacer is suitable for vent sizes of three inches and works seamlessly with industry-standard components.
This firestop spacer simplifies vent installation and ensures safety in gas vent systems. It connects easily to both male and female ends of B-Vent systems, allowing for a secure fit.
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