Sufficient Quantity: You will receive 10 replacement pool filter pump extensions in sufficient quantity to meet your needs and replacements, compatible with some Bestway brand pools. Multipurpose: These plugs are suitable for pipes and hoses up to 3 cm in diameter. You can use this plug to effectively prevent flow when cleaning your pump filter cartridge or replacing it. Durable and Well Sealed: This type of pool filter pump cap is made of high-quality plastic, with a smooth surface and a reliable and durable seal for a long service life. Durable and Well Sealed: This type of pool filter pump cover is made of high-quality plastic With smooth surface and good seal, reliable and durable for long service life. Size: Item Size(L x W x H): 5.5 x 3 x 5.5 cm, please measure the size before purchasing. If you have any questions, please feel free to contact us. We will do our best to help you.