This is a Pentair Large Full Grid Assembly, 36 Square Feet, for FNS36 Pool and Spa D.E. Filters, Nautilus NS36 and Nautilus Plus NSP36 Pool and Spa D.E. Filters.
These grids are injection molded from 100% virgin, high impact styrene then covered with multi-filament polypropylene fabric. Each grid has been engineered with subtle design improvements specifically for this model and manufacturer.
