The Master Flow Roof Louver Galvanised - Slant-Back With Filter (Pack of 6) is an attic-ventilation solution designed to keep the air moving while fending off pests and weather. Its galvanized steel frame and fully enclosed hood make it a solid choice for steep-slope roofs where ventilation matters as much as curb appeal.

Key Features & Design

• Galvanized steel construction
• Slant back louver design
• 60 sq. in. net free ventilating area
• Contains internal Weather & Ember-Resistant Screen
• Fully enclosed hood deters rodent and insect infiltration and leaf and pine needle clogging
• Excellent against weather infiltration, especially in steep-slope applications
• Pack of 6
• Always check with the authority having jurisdiction for approval before use
• Internal screen meets the prescriptive requirements of Chapter 7A- Materials and Construction Methods for Exterior Wildfire Exposure of the California Building Code, 2022 edition

Engineered for reliable attic ventilation, this Master Flow vent balances airflow with protection, making it a practical drop-in for homes facing challenging weather and wildlife conditions. If you’re updating multiple vents or replacing aging units, the pack-of-6 option simplifies procurement and installation.