Nautilus NSP72 Filter Grid - 72 Square Feet - 36 Inches pool-sign It is a direct replacement

It is a direct replacement of Pentair Sta-Rite A100FLL

large wing-nuts and corrosion free materials as closed plugs except they have an opening that passes through the center of the stem

Stainless steel is a corrosion resistant alloy

and hotels/motels

An optional Ballast System provides extra stability to these portable platforms (sold separately)

Nautilus NSP72 Filter Grid - 72 Square Feet - 36 Inches pool-sign It is a direct replacementThis is a Pentair Small Filter Grid Assembly, 72 square feet and 36 inches in height. This filter grid is designed for the Nautilus and Nautilus Plus pool and spa D. E. Filters. One is required. Pentair filter 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.