Purex SM-SMBW 2072 Compatible Filter Grid Element 72 Square Feet - 36 Inches length_4 Inches It is used for Calcium

It is used for Calcium Hardness testing in Taylor Kits

The Pool Manager Tablet Series titrations for Alkalinity and Hardness use a single tablet added to a test sample to develop a color

This is a convenient size for several repairs

This is a C-Series Pump Lid O-Ring replacement for Pentair Purex C-Series pool pumps

Pentair/Purex P24030

Purex SM-SMBW 2072 Compatible Filter Grid Element 72 Square Feet - 36 Inches length_4 Inches It is used for CalciumThis is a Purex SM SMBW 2072 4072 Compatible Filter Grid Element 72 Square Feet, 36 Inches, Full Vertical DE Replacement Grid. Our generic OEM 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 over OEM units.