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Type-B Gas Vent products are tested and listed to UL 441 for approved gas appliances and feature our innovative twist-lock connection and locking tab, eliminating the need for sheet metal screws. Metal-Fab Type B Gas Vent combines hemmed flues and casings that maximize product durability and reliability and minimize installation time. Designed for versatility, Metal-Fab Type-B Gas Vent products 3"-6" adapt to major competing brands and when installed establish a UL Listed connection.
| Model | MST |
| Application | For use with category I natural gas-burning or propane-fired appliances such as gas boilers, fireplaces, furnaces, unit heaters and radiant tube heaters. |
| Listings/Standards |
NFPA 54 NFPA 211 UL 441 |
| Clearances | 1" Minimum clearance to combustibles for 3" - 24" |
| Size | 1/16" x 5/8" x 25ft |
Ships within 48 hours · Estimated delivery Jun 27 - Jul 2
US$40
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