Pentair Spider Grid Locator | FNS Plus Filter | 59000500 Inlets & Skimmers enabling accurate automated management of

enabling accurate automated management of heating

When replacing the screw set

Niche provides for flush mounting

Vac Adapter plate and elbow used to attach vacuum hose to skimmer

Over-loading DE restricts flow

Pentair Spider Grid Locator | FNS Plus Filter | 59000500 Inlets & Skimmers enabling accurate automated management ofThe Pentair Spider Grid Locator (59000500) is the OEM replacement bottom grid locator spider for the Pentair FNS Plus series D. E. filters. What It Does The bottom spider grid locator positions and retains the filter grids at the base of the filter tank, keeping each grid element correctly spaced and aligned during operation. A cracked or deformed locator allows grids to shift, which can result in uneven D. E. coating, channeling, and D. E. passing