Waterway 8" Round Anti Vortex Main Drain Grate [w/Collar] [VGB 2008] [Black] (640-2311V) watercousa A part like this is

A part like this is useful because it helps stabilize the filter body

Matching the correct molded style and 18/3 wire format helps keep the installation accurate and reduces the chance of electrical mismatch

Helps switch compatible control circuits in supported electrical systems

The included sensor matters because it helps preserve the way the M7 system expects to read and respond to heater-side conditions

Waterway 8" Round Anti Vortex Main Drain Grate [w/Collar] [VGB 2008] [Black] (640-2311V) watercousa A part like this isThe Waterway 640 2311V round anti vortex main drain grate with collar is designed for compatible drain applications in an 8 inch format and features a black finish. A grate with collar can be especially useful because it helps provide a more complete replacement at the visible drain point, improving both presentation and component completeness. The anti vortex design and VGB 2008 reference make proper compatibility especially important when selecting