Filbur DE Grid Set [Pentair/Hayward, 30", 60 sq ft, 7 Full + 1 Half] (FC-9550) mazzei Supports cleaner and more dependable

Supports cleaner and more dependable chemical injection

The Hayward replacement filter cartridge is designed for compatible C500 filter applications where the internal cartridge element needs replacement

or become difficult to read

That helps restore system performance without replacing the broader in-floor layout

A fresh strainer screen can help restore the intended protective barrier and make the system feel more complete and service-ready again

Filbur DE Grid Set [Pentair/Hayward, 30", 60 sq ft, 7 Full + 1 Half] (FC-9550) mazzei Supports cleaner and more dependableThe Filbur FC 9550 DE grid set is designed for compatible Pentair and Hayward DE filter systems and includes 7 full grids plus 1 half grid in a 30 inch, 60 square foot configuration. A set like this is useful because it provides a coordinated replacement for the full internal grid assembly in larger DE filter systems. When DE filter internals are heavily worn, rebuilding with a complete set can make more sense than mixing new and aged components. A