Features MaxxAir's Exclusive ZERO-LEAK™ Mounting System Lets in Fresh Air Anytime.

• Rain or Shine! Stale Musty Air, Smoke, and Cooking Odors Escape While Rain Stays Out
• Prevents Heat Build-up
• Made of High Density Polyethylene with maximum UV Protection
• Not recommended for use with high-powered ventilators
• Fits over most 14" x 14" Standard Roof Vents Installs easily! (See our Installation Guide)