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

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

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SX164DAS
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About This Item

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

Hayward Part Number SX164DAS
Filter Size 16"
UPC 610377446969

Fits Into

Brand Equipment Line Model / Part Number Notes
Hayward ProSeries 16" Sand Filter — Top Mount W3S166T Position v1 #6

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.

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Hayward

About Hayward

Founded in 1925, Hayward has evolved from a small specialty metal shop in Brooklyn into a global powerhouse in residential and commercial pool equipment. For nearly a century, Hayward has pioneered advancements that revolutionized the swimming pool industry—most notably by transitioning pool equipment from heavy, rust-prone metals to durable, corrosion-resistant thermoplastics in the 1960s.

Today, Hayward is synonymous with reliable, energy-efficient performance and cutting-edge technology. From the legendary Super Pump to their modern Omni smart pool automation platforms, Hayward builds equipment designed to give pool owners total control and peace of mind. By focusing on sustainability, category-leading energy efficiency, and seamless smart home integration, Hayward empowers DIY homeowners to spend less time maintaining their water and more time enjoying their backyard oasis.

Why We Trust Hayward
A Century of Innovation: Over 100 years of engineering excellence, leading the industry from early metal valves to modern smart pool technology.
Unmatched Energy Efficiency: Pioneers of ultra-high efficiency variable-speed pumps and heating systems, saving pool owners money on monthly energy bills.
Total Smart Control: Creators of the Omni automation platform, giving users seamless, wireless control of pool chemistry, lighting, and temperature from their smartphones.
American Manufacturing Focus: The vast majority of Hayward products and components are proudly manufactured in United States facilities, ensuring strict quality control and dependable performance.

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