Expandable Pleat

The 3 Pack Flat Panel Fiberglass Filter is compatible with Model 413 and has a MERV 13 rating, making it suitable for capturing allergens, dust, pet dander, bacteria, and smoke. This white filter features electrostatic filtration technology and an expandable pleat design for easy installation. With a filter life of 6 months, this flat panel filter measures 16x25x4 inches and is made of fiberglass filter media. It is designed for use in furnaces and whole house air purifiers, providing clean and fresh air for your living space.