Evaporator cooler heat plug 18 inch X 18 inch X4 inch duct insulator {71}

The Evaporator cooler heat plug 18 inch X 18 inch X4 inch duct insulator by Brians Corner Products is a high-quality insulation product designed to keep your home warmer and more comfortable. Made in the United States, this insulator is specifically crafted to fit a 18 inch X 18 inch X4 inch duct size, providing a snug and effective seal to help maintain optimal temperatures. Perfect for use in heating, cooling, and air systems, this product is sure to help you save energy and stay cozy all year round. Thank you for shopping Integrity Sales. BR