AmeriVent Fixed Storm Collar, Vent Hole Size: 4 in, Material Gauge: 0.18 in, Steel, Galvanized, Dimensions: 4-1/2 in ID x 7-5/8 in OD x 1-1/2 in H, Installation Type: Wall, Suitable for: Type B Gas Vent
Manufacturer: AMERICAN METAL Model Number: 4ESC UPC: 095029330252
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