The 2" Washer Ring set is a versatile and durable solution for a variety of sealing needs, perfect for plumbing and pool/spa installations. Made from Buna-70, a high-quality rubber material, these washer rings are designed to withstand high temperatures, ensuring reliable performance in demanding environments. With a 1.5" diameter, they are ideal for standard union connections and come in a convenient pack of 12, making them both cost-effective and practical for multiple uses.