Security Boss MaxSeal Sash Lockable Window Insert X-Large Its angular form

Its angular form

Fans are removable and can be replace with a solid cover during cold weather use

This divider is manufactured from heavy-duty

Reinforced bottom

The Elara's dual-compartment design offers tailored comfort for one large dog or a bonded pair

Security Boss MaxSeal Sash Lockable Window Insert X-Large Its angular formThe MaxSeal Sash Window Pet Door offers the very best in insulating and sealing in a window pet door. The pet door used in this unit is the MaxSeal Pet Door, Dual Flexible Flap Model that is friendly for pets to use but provides a near perfect weather barrier in the most extreme environments. The Insulated security panel slides from the side, locking the pet opening. All Security Boss products are hand built to order. All Security Boss Inserts come