Pentair FNS Plus 36 SqFt Full DE Grid (59001800Z) divertorvalves A properly selected replacement helps

A properly selected replacement helps restore intended debris-capture performance and contributes to cleaner

A properly selected tool helps improve alignment

A properly fitting skimmer lid helps cover the skimmer opening

9-7/8" white replacement cover

Pentair FNS Plus 36 SqFt Full DE Grid (59001800Z) divertorvalves A properly selected replacement helpsUsing the right replacement part matters during pool and spa service. Pentair FNS Plus 36 Sq Ft Full DE Grid (59001800Z) supports a focused repair where fit, function, and reliability are important. A full DE grid is central to FNS Plus filtration, capturing fine debris as water passes through the coated grid surface. It is useful when the existing component shows wear, damage, age related failure, or performance issues in the larger pool or spa