The Hayward CX250F Filter Head Gasket is a vital component designed for use in pool filtration systems, ensuring a secure and leak-free seal between the filter head and tank. This high-quality gasket is specifically engineered to maintain the integrity of the filtration process by preventing water from escaping, thereby optimizing the performance of your pool filter. Measuring 8" in inner diameter (ID), 8-3/4" in outer diameter (OD), and with a thickness of 1/2" , the CX250F is crafted from durable materials that are resistant to the harsh chemicals typically found in pool environments. Its precise fit and robust construction make it an essential part of the filtration system, helping to extend the life of your pool equipment by reducing wear and tear caused by leaks.