Hayward Folding Lateral Assembly for ProSeries 16″ Sand Filter W3S166T | SX164DAS

Description

The Hayward Folding Lateral Assembly (SX164DAS) is the OEM replacement lateral for the ProSeries 16″ Top-Mount Sand Filter W3S166T.

What It Does

The folding lateral assembly sits at the base of the filter tank and distributes water evenly through the sand bed during the filtration cycle. It also collects filtered water and directs it back to the return line without allowing sand to pass through. Replacing a cracked or broken lateral restores proper flow distribution and prevents sand from entering the pool.

Specifications

Fits Into

Compatibility is based on Hayward parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment’s manual or on the original part itself before ordering.

Poolaroo Pro Tip

When inspecting laterals, check all arms of the assembly — a single crack is enough to allow sand to pass into the pool. If one lateral shows wear, inspect the remaining laterals before reassembling the filter, as multiple laterals on an older filter often reach the end of their service life at the same time.