AllPoints Foodservice Parts & Supplies 321117 is a high-quality seat washer designed specifically for Eterna® and 1100 Series full-turn faucets. With a 1/2" outer diameter and a thickness of 1/8", this washer is made from durable black neoprene, ensuring a reliable seal and long-lasting performance. Ideal for maintaining optimal faucet function, it helps prevent leaks and enhances the overall efficiency of your plumbing system.