FNS/Nautilus Filter Grid 48 Square Feet - 24 Inches discharge-pipe-size_1" This 18 inch commercial grade

This 18 inch commercial grade ladder tread matches these manufacturer ladder treads: SR Smith A42077-0 and Astral 4401010203

rubber gasket and 1/2 inch lead anchor

These refinements combine to create a more reliable product that simplifies installation and maintenance

The Harmsco Portable BetterFilter Model BF105BKPSC/TC is a single cartridge filter with a TropiClean filter cartridge

untreated areas may appear inferior following use

FNS/Nautilus Filter Grid 48 Square Feet - 24 Inches discharge-pipe-size_1" This 18 inch commercial gradeThis is a Pentair Replacement Small Partial Grid Assembly 24 Inches for FNS and FNS Plus FNS24 Pool and Spa D. E. Filters, Nautilus NS48 Pool and Spa D. E. Filters.