Hayward SX220DA Sand Filter Lateral Assembly With Center Pipe - For S220T

What This Part Is Used For
The Hayward SX220DA is a lateral assembly with center pipe used inside the Hayward S220T sand filter as listed. It forms the internal underdrain that collects filtered water and keeps sand media in the tank. This assembly sits at the bottom of the filter and is accessed during sand changes and internal rebuilds.

Why This Part Matters
When laterals crack or the center pipe connection fails, sand can return to the pool through the returns and water clarity drops quickly. A damaged underdrain also makes backwashing less effective and can cause the filter to channel. Replacing the correct assembly restores proper media retention and consistent filtration flow. This repair is commonly done during a sand replacement when the filter is already opened.

Key Features and Specifications

• Manufacturer part number: SX220DA
• Sand filter lateral assembly with center pipe
• Specified for Hayward S220T sand filter
• Internal underdrain component that helps retain sand media
• Installs at the bottom of the filter tank

Installation and Fitment Guidance
Shut off the pump and fully relieve pressure before opening the filter. Remove sand carefully and confirm all laterals and the center pipe seat correctly before refilling media. Confirm by manufacturer part number before ordering.

About the Hayward Brand
Hayward manufactures a complete pool equipment ecosystem including pumps, filters, heaters, automation controls, cleaners, chlorination systems, and service parts. Their sand filters are widely installed and supported with internal service parts like laterals and center pipes to extend equipment life. This compatibility helps technicians restore filtration performance without replacing the entire filter. Hayward replacement parts are widely supported across residential pool service.

Common Service Context
Techs typically replace this assembly when sand starts blowing into the pool or the filter cannot clear the water despite normal pressure. It is often confirmed during a sand change when laterals are found cracked from age or freeze damage.