The AllPoints Foodservice Parts & Supplies 321466 is a high-quality O-ring check valve designed for fryers. With an outer diameter of 1-5/8 inches, this durable orange O-ring ensures a secure seal, preventing leaks and maintaining optimal performance in your fryer system. Its robust construction is ideal for heavy-duty use, making it a reliable choice for foodservice operations. Enhance the efficiency and longevity of your fryer with this essential accessory.