This replacement pool filter valve seal is designed for 3.8 cm (1 1/2 inch) top and side multiport valves, ensuring a secure fit and reliable performance with your pool or spa system. Key benefits - Compatibility: fits 3.8 cm top and side multiport valves and models 261177, 261173, 261130, and 261124 for versatile use across common valve types. - Reliable seal: engineered to seal properly and minimize leaks during filtration cycles. - Durable construction: built to withstand the demands of pool and spa environments for long-term use. - Easy retrofit: straightforward replacement that reduces downtime and maintenance effort. What this solves - Provides a dependable seal for 1 1/2 inch valve configurations, helping prevent leaks and maintain proper flow. - Enables quick replacement across multiple valve types with a single compatible seal. - Supports consistent valve performance in both pools and spas. Use scenarios - Replacing a worn or leaking valve seal on a 1 1/2 inch top or side multiport valve in a residential pool. - Upgrading spa valve assemblies to improve leak resistance and reliability across multiple valve configurations. - Seasonal maintenance to stock a universal seal that covers several valve types without multiple parts.