Hayward Gauge Adapter O-Ring for Perflex Extended-Cycle DE Filters W3EC50AC W3EC65A W3EC75A | ECX1287
Hayward

Hayward Gauge Adapter O-Ring for Perflex Extended-Cycle DE Filters W3EC50AC W3EC65A W3EC75A | ECX1287

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SKU:
ECX1287

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About This Item

The Hayward Gauge Adapter O-Ring (ECX1287) is the OEM replacement sealing O-ring for the pressure gauge adapter on Perflex Extended-Cycle DE filters.

IMPORTANT: LUBRICATION REQUIRED — SOLD SEPARATELY
Always lubricate this O-ring with a silicone-based lubricant before installation. Browse our Pool Plumbing Lubricants for a compatible silicone lubricant.

This O-ring seals the gauge adapter fitting on the filter tank, preventing air ingestion and water leaks at the pressure gauge port. Replacing a worn or flattened O-ring at this fitting restores an accurate pressure reading and a leak-free connection.

Specifications

Hayward Part Number ECX1287
UPC 610377024693

Fits Into

Brand Equipment Line Model / Part Number
Hayward Perflex Extended-Cycle DE Filter 25 Sq.Ft. (with Clamp) W3EC50AC
Hayward Perflex Extended-Cycle DE Filter 27 Sq.Ft. W3EC65A
Hayward Perflex Extended-Cycle DE Filter 40 Sq.Ft. W3EC75A

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

Before seating the new O-ring, clean the gauge adapter groove thoroughly to remove any remnants of the old O-ring or debris. Apply a thin coat of a silicone-based lubricant — available in our Pool Plumbing Lubricants collection — to the O-ring before threading the adapter back in. This prevents pinching and tearing during installation and extends the service life of the seal.

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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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