Filbur FC-9890 Pool 18" x 17-3/4" Rectangular DE Grid Filter valveparts making it the right choice

making it the right choice when that exact topside face needs to be restored

Useful when the original switch is worn or erratic

Matching the correct stainless steel and dark gray crown-style internal helps preserve intended fit and a premium appearance

cleaner hydraulic balance

Low flow configurations help maintain controlled system operation

Filbur FC-9890 Pool 18" x 17-3/4" Rectangular DE Grid Filter valveparts making it the right choiceA rectangular DE grid filter helps form the filtration surface inside a compatible diatomaceous earth filter system, and this Filbur FC 9890 grid is designed in an 18 inch by 17 3 4 inch format for matching pool applications. When the original grid becomes damaged or worn, the filter can lose the dependable debris capture support it should provide. The 18 inch by 17 3 4 inch dimensions and FC 9890 reference give this part practical value because DE