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VER2, VER2M, VER3, VER3M, VER4, VER4M and VER6M are listed as round eave vents in the 2025 OSFM handbook, 8165-2192:0500.
The M suffix identifies a specific screen condition within this Vulcan family. The September handbook description assigns models with M a woven type 304 stainless steel screen with 1/16-inch openings, positioned between the louvers and the honeycomb core. That is a description of a layer inside the finished vent, not a specification for adding loose mesh to another vent. The source does not assign that screen to the non-M models.
The listed size choices are 2-, 3-, 4- or 6-inch diameter openings, with a 1/4-inch flange and 3/4-inch depth. These are the family's stated options; the description does not pair each diameter with an individual model. Confirm the model and opening together when selecting a replacement.
The aluminum vent body is 0.020 inch thick. Under the louver cap, the source describes an intumescent-coated, 5-mm hexagonal aluminum matrix core made from 0.05-mm foil. Its dimensions and the M-model screen position describe different parts of the assembly; neither alone represents the complete listed vent.
ASTM E2886 is the handbook's test protocol. For installation details, it refers to the manufacturer's instructions and product data sheets. Check those documents against the exact model and the live listing before specification, keeping this dated assembly description attached to the named round vents.
Documented attributes
Each value below points to its field-level manufacturer, official-listing, test-report, or standard-body evidence.