Hayward DE4820 Pro-Grid Assembly (DEX4800DC) airblowers A tube like this is

A tube like this is useful because it helps transmit the pressure condition to the related control component

The CMP generic weir is designed for compatible skimmer applications where a replacement weir door with an 8 inch width is needed

Waterway pump union assembly

and loss of pressure when installed in the correct groove or sealing surface

Helps capture debris before it reaches deeper equipment

Hayward DE4820 Pro-Grid Assembly (DEX4800DC) airblowers A tube like this isThe Hayward Pro Grid assembly is designed for compatible DE4820 DE filter applications where the internal grid assembly needs replacement. A grid assembly is useful because it provides the internal structure that supports DE media and helps remove fine debris from circulating water. This replacement is especially useful when the original grid assembly is torn, damaged, clogged beyond cleaning, or no longer filtering effectively. Replacing the internal