Pentair Dual Port Main Drain Screw
Pentair Dual Port Main Drain Screw
Pentair Dual Port Main Drain Screw
Pentair Dual Port Main Drain Screw
Pentair Dual Port Main Drain Screw
Pentair Dual Port Main Drain Screw
Pentair Pool Products and Parts

Pentair Dual Port Main Drain Screw #8 x 1-1/4" Nitronic® 60 Stainless Steel | 552539

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SKU:
552539

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About This Item

OEM Replacement Fastener for Pentair Dual Port Main Drains

The Pentair 552539 is the OEM replacement #8 x 1-1/4" screw for Pentair Dual Port Main Drain assemblies, manufactured from Nitronic® 60 stainless steel for long-term performance in submerged pool environments.

What It Does

This screw secures the cover plate of the Dual Port Main Drain assembly to the drain body. A missing, corroded, or damaged fastener compromises the integrity of the drain cover — a critical safety component. Replacing with the correct OEM fastener ensures the cover remains properly seated and meets the drain assembly's design specifications. Match the part number stamped or labeled on your existing hardware before ordering.

Specifications

Pentair Part Number 552539
Screw Size #8 x 1-1/4"
Material Nitronic® 60 Stainless Steel
Application Dual Port Main Drain
Quantity Included Each

Pro Tip

Main drain cover screws are a commonly overlooked service item. When inspecting or replacing a drain cover, check all fasteners — corroded or missing screws on a main drain cover are a safety concern and should be addressed immediately. Nitronic® 60 stainless is specified for its superior galling resistance compared to standard 316 stainless, making it well suited for submerged, threaded fastener applications. Verify the screw count required for your specific drain model before ordering — most dual-port drain covers require more than one screw per assembly.

CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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Pentair Pool Products and Parts

About Pentair Pool Products and Parts

Pentair is often considered the "gold standard" for pool professionals, and for good reason. Founded in 1966 (originally by five inventors making high-altitude balloons!), the company has evolved into the global leader in smart, sustainable water solutions. For the DIY homeowner, Pentair represents the intersection of rugged durability and silicon valley-tier technology. They pioneered the Variable Speed Pump revolution with the IntelliFlo®, saving American pool owners millions in energy costs. Today, their ecosystem focuses heavily on automation, allowing you to control your pump, heater, lights, and chemistry from a single app. While they are a favorite among professional builders, their "EC" (E-Commerce) line of equipment allows homeowners to access pro-grade technology with valid warranties for DIY installation.

Why We Trust Pentair Pool Products and Parts
Energy Efficiency Leaders: Recipient of the ENERGY STAR® Partner of the Year award for over a decade; their pumps are designed to pay for themselves in energy savings.

Smart Automation: The Pentair Home App and IntelliCenter systems offer best-in-class control over your pool ecosystem from anywhere in the world.

Professional Pedigree: The brand most often recommended and installed by pool builders for high-end residential pools.

Eco-Conscious: Dedicated to reducing water waste and energy consumption through "Green" technology innovations.

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