The TRUE E810800 3/8" Refrigerator Magnetic Door Gasket, 21.5" x 31.25" is a vital component for TRUE refrigeration units.This magnetic gasket creates a tight seal around the refrigerator door,preventing warm air from entering and cold air from escaping.This ensures consistent internal temperatures,reduces energy consumption, and maintains food freshness. https://partsfe.com/e810800-true-gasket-door-21-12-x-31-14