Pentair 59002900 30-Inch Small Partial Grid Assembly Replacement 60 Square Feet Pool and Spa D.E. Filter fit-test-kits Experts recommend testing pool or

Experts recommend testing pool or spa water weekly for optimum chemistry levels

Contains no harsh chemicals

QUALITY REPLACEMENT FILTER: Keep your pool or spa sparkling clean with this 200 square foot filter area replacement cartridge

Inlet high velocity replacement

Pentair 59002900 30-Inch Small Partial Grid Assembly Replacement 60 Square Feet Pool and Spa D.E. Filter fit-test-kits Experts recommend testing pool orPentair 59002900 30 Inch Small Partial Grid Assembly Replacement 60 Square Feet Pool and Spa D. E. Filter Partial grid replacement assembly Fits Pentair FNS and FNS Plus pool and spa D. E. filters Also fits Pentair Nautilus and Nautilus Plus 60 square feet pool and spa D. E. filters Comes in small size Measures 30 inch