| Duct Type | 6" Round |
| Material | Galvanized Steel |
| Returnable | 90-Day |
| Product Depth (in) | 6 in |
| Product Height (in) | 4.5 in |
| Product Length (in) | 5.88 in |
| Product Width (in) | 5.88 in |
| UPC | 705353131790 |
VENTS 6 in. KOM 150 U round back valve is especially designed to prevent back-draft. The spring loaded back-draft damper is manufactured of galvanized steel and contains rubber seal. Galvanized steel material is rust- and corrosion-resistant.