Easy Installation & Compatibility: Simply insert the plug into the pool filter pump hole on the pool wall, designed to fit pools with 1.25-inch diameter hoses without plunger valves. Durability & Efficiency: Made from durable plastic, these plugs effectively prevent water leakage during filter pump cleaning, ensuring reliable and hassle-free maintenance. Compatibility & Universality: Compatible with Intex and Bestway models, serving as a universal replacement cap for above ground pool filter pump holes. Versatile Use: Suitable for 530/1000 GPH and lower pump models, ideal for sealing the filter pump inlet and retaining water during maintenance. Customer Satisfaction Guaranteed: Backed by a commitment to quality, with support available to assist with any concerns. Ensure efficient pool maintenance with these universal plugs, providing a secure seal to prevent water loss during filter cleaning. Designed for compatibility with select above ground pools, including Intex and Bestway models.