Panel & Window Height, Sash Width Extensions

Gives you an extra 1/2" added to your sliding glass door or window panel Compatible with Endura Flap, Dragon, Liberty and Whiskers & Windows aluminum panels Four sizes and three colors to match your pet door perfectly Designed for height adjustment in case of measurement errors Easy to install for a seamless and secure fit The Patio Pacific Panel Height and Sash Width Extensions are designed to provide a seamless and secure fit for your Endura Flap Thermo Panel and Thermo Sash pet doors.  Additionally, it will work with Dragon, Liberty and Whiskers & Windows pet door panels for sliding glass door and windows. If you've found that your pet door is slightly too small for your doorway, these extensions offer the perfect solution, giving you an extra 1/2" added to the panel or sash adjustment range. Constructed with high-quality aluminum, these extensions are durable and stable, ensuring your pet's safety and comfort while using the door. The extensions are compatible with Endu