Compatibility Engineered for seamless integration with Hayward Pro, HCF series sand filters, Starlight models S270T2, S244SV, HCV20715, C12002, and Perflex Series Extended Circulation filters, guaranteeing accurate pressure for pool maintenance. Replacement part This singlepiece pressure gauge serves as a direct replacement for ECX271261, providing a reliable component for maintaining your pool filter system's efficiency and performance. Accurate pressure readings Features a clear display that delivers precise pressure readings, allowing you to maintain filter performance and identify when maintenance or backwashing is required. Durable construction Built with resistant materials that withstand harsh pool environments, avoiding erosion and maintaining functionality through extended exposure to pool chemicals. Use scenarios Routine maintenance in Hayward Pro, HCF series, or Perflex Extended Circulation systems to monitor pressure and determine backwash intervals. Replacement during service to restore accurate pressure readings when ECX271261 is worn or failing. Outdoor pools or chemically harsh environments where durable, resistant materials help extend gauge life.