Hayward Mounting Washer for ProSeries Sand Filters and ProGrid DE Filters | ECX1109
Hayward

Hayward Mounting Washer for ProSeries Sand Filters and ProGrid DE Filters | ECX1109

$4.99
/
$9.99 flat shipping on orders under $100.
Genuine Hayward OEM Part Guaranteed Authentic
Hayward Authorized Dealer Full Manufacturer Warranty Support
No Hassle Returns 30 Days Paid Returns
SKU:
ECX1109

  • Poolaroo Promise

    • Fast Shipping — Ships in 1–2 Business Days
    • 30-Day Risk-Free Returns — We Pay Return Shipping, No Restocking Fees
    • Powered By People Who Care - No Faceless Conglomerate

About This Item

The Hayward Mounting Washer (ECX1109) is the OEM replacement washer for Hayward ProSeries sand filters and ProGrid DE filters.

This hardware washer secures internal mounting assemblies within compatible Hayward filter systems, maintaining proper component alignment and sealing integrity during operation.

Specifications

Hayward Part Number ECX1109
UPC 610377024228

Fits Into

Brand Equipment Line Model / Part Number Notes
Hayward ProGrid DE Filter 36 Sq.Ft. W3DE3620 Position v2 #11
Hayward ProGrid DE Filter 48 Sq.Ft. W3DE4820 Position v2 #11
Hayward ProGrid DE Filter 60 Sq.Ft. W3DE6020 Position v2 #11
Hayward ProSeries 16" Sand Filter - Top Mount W3S166T Position v1 #12
Hayward ProSeries 23" Sand Filter - Top Mount W3S200 Position v3 #42
Hayward ProSeries 21" Sand Filter - Side Mount W3S210S Position v2 #42
Hayward ProSeries 30" Sand Filter - Side Mount W3S310S Position v2 #42

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 replacing this washer, cross-reference the position label (e.g., v2 #11 or v3 #42) in your specific filter's exploded diagram to confirm you are replacing the correct hardware fastener — some filter models carry washers in multiple positions with different specifications.

Format: you@example.com

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.

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.

Recently viewed