Hayward Hydrostream Insider Return Fitting for 1-1/2" Slip Pool Plumbing | SP1421DBLK
Black plastic Hayward Hydrostream fitting SP1421DBLK with ribbed edge and round center opening, 1 1/2" slip end.
Black plastic Hayward Hydrostream fitting SP1421DBLK with round barrel and ridged locking ring, shown upright.
Hayward Hydrostream Insider Return Fitting for 1-1/2" Slip Pool Plumbing | SP1421DBLK
Black plastic Hayward Hydrostream fitting SP1421DBLK with ribbed edge and round center opening, 1 1/2" slip end.
Black plastic Hayward Hydrostream fitting SP1421DBLK with round barrel and ridged locking ring, shown upright.
Hayward

Hayward Hydrostream Insider Return Fitting for 1-1/2" Slip Pool Plumbing | SP1421DBLK

$7.99
/
$9.99 flat shipping on orders under $100.
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SKU:
SP1421DBLK

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About This Item

The Hayward Hydrostream Insider (SP1421DBLK) is the OEM replacement black return fitting for in-ground pools, sized for 1-1/2" slip pipe with a 3/4" opening.

This return fitting is built in durable black ABS and connects directly to 1-1/2" slip pipe, directing return water flow into the pool through its 3/4" opening. It's designed as a direct-fit replacement where the original Hydrostream Insider fitting has cracked, faded, or otherwise needs to be swapped out.

Specifications

Hayward Part Number SP1421DBLK
Material ABS
Color Black
Opening Size 3/4"
Pipe Connection 1-1/2" Slip
UPC 610377047746

Poolaroo Pro Tip

This fitting installs into 1-1/2" slip pipe common on in-ground pool return lines. Since this version is black, confirm the color of your existing return fitting matches before ordering — the fitting's finish is visible above the pool wall once installed.

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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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