ProGrid/MicroClear DE4820 Filter Grid Element 48 Square Feet - 24 Inches Full D.E. Grid filter-internal-diameter_1 1/2 inches This ceramic pool depth marker

This ceramic pool depth marker is printed with 3 1/2 FT and has a smooth surface

This is a Dolphin Wireless 8-Lane Stopwatch System with 3 Watches Per Lane

for adding the shock of realism to an otherwise ordinary practice procedure

and 17304-0100S

ProGrid/MicroClear DE4820 Filter Grid Element 48 Square Feet - 24 Inches Full D.E. Grid filter-internal-diameter_1 1/2 inches This ceramic pool depth markerThis is a Hayward Replacement 48 Square Foot Full Filter Element for ProGrid Vertical Grid DE Series DE4820 Filter. This filter element is used in the ProGrid DE4820, MicroClear DE4800, and MicroClear DE 480S Stainless Steel 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