The perfect door for extreme climates. This durable door with a 3-flap system delivers maximum energy efficiency that's 3-1/2 times higher than our standard single-flap pet doors. The Extreme Weather Pet Door protects your home from extreme temperatures while giving your pet the freedom to come and go. Warranty: Please click here to access warranty information. Features: 3-flap system offers protection from extreme heat, cold, drafts, insects, or driving rain; Durable plastic frame Includes: Sna