Waterite Vacuum Filter Grid Cover - 4 x 4 x 25.5 Inch filter-width_15 5/16 inches The man-way is 16 inches

The man-way is 16 inches in diameter

This is a PVC Mini Channel Drain with inverse flying butress design

a suction strainer

This retrofit anchor requires a 3 inch diameter drill bit to drill down 6 inches into the concrete in three spots

the durable outer plate creates a 100% air-tight seal preventing freezing during the winter months

Waterite Vacuum Filter Grid Cover - 4 x 4 x 25.5 Inch filter-width_15 5/16 inches The man-way is 16 inchesThis is a Waterite Filter Grid Cover (Sleeve) measuring 4 x 4 x 25. 5 inch. These covers are made with multi filament, polypropylene fabric by Universal Filtration. This filter grid cover is used on Waterite Vacuum DE filters.