Compatible with Models: Our Inlet & Outlet Seal Set is designed to fit a wide range of Intex Pure Spa models, including 28407E, 28409E, and more, for versatile spa maintenance. Compatible with: SB-B20 All Models, SB-H20 PureSpa Bubble, SB-HW20 PureSpa Greywood, SB-HWF20 PureSpa Greywood, SSP-H-20-1 All Models, SSP-H-20-1C PureSpa Bubble, SJB-HS-20 All Models, SJB-HS-30 All Models, PS-BH-20 PureSpa Plunge Pool, SSP-H-20-1C All Models. Our seals and gaskets are made from rubber materials and are rigorously tested to ensure they meet high standards of quality and reliability. Easy Installation: Replace worn or damaged seals easily to restore spa performance without complicated procedures. Packing includes: 2 pcs black seals gaskets. Prevent leaks with a perfect gasket between connectors. These silicone seals ensure seamless water flow for hot tubs, pools, and spa connectors.