The gasket for 4 inch flange mount lights is a practical and essential accessory for ensuring a secure and watertight seal. Available in black and measuring 5.5 inches wide by 5.5 inches tall by .12 inches deep, this gasket is sold individually and fits most makes and models. Its durable construction and precise fit make it a reliable solution for maintaining the integrity of your flange mount lights, providing peace of mind and long-lasting performance.