The AllPoints Foodservice Parts & Supplies 5521034 Refrigerator Door Gasket is designed for optimal sealing and energy efficiency. Measuring 77-1/2 inches in length and 37-5/8 inches in width, this 3-sided gasket features a magnetic dart for a secure fit. Made from durable vinyl in a light gray color, it is compatible with Master-Bilt model 37-01254 and is ideal for use in walk-in refrigerators and freezers. Enhance your refrigeration system's performance with this reliable and easy-to-install door gasket.