Pentair Black Union Nut 2-1/2" | WhisperFlo XF / IntelliFlo XF Pump | 411000Z
Pentair Pool Products and Parts

Pentair Black Union Nut 2-1/2" | WhisperFlo XF / IntelliFlo XF Pump | 411000Z

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SKU:
411000Z

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About This Item

The Pentair 411000Z is the OEM replacement 2-1/2" union nut for the WhisperFlo XF and IntelliFlo XF Variable Speed Pumps, finished in black.

What It Does

This union nut secures the pump union connection, maintaining a leak-free seal between the pump and plumbing. A cracked, stripped, or missing union nut compromises the union joint, leading to leaks at the pump inlet or outlet. Replacing it with the correct OEM part restores a proper, pressure-rated connection. Also referenced as the MAX-E-PRO XF Union Nut in Pentair documentation.

Specifications

Pentair Part Number 411000Z
Also Known As MAX-E-PRO XF Union Nut
Connection Size 2-1/2"
Color Black
Quantity Included 1

Pro Tip

Before ordering, confirm the union nut size and color against the original part on your pump. Pentair union nuts are available in multiple sizes and colors — the 411000Z is specifically the 2-1/2" black version. If your existing nut is a different size or color, verify the correct part number in your pump's installation manual or on the part itself before adding to cart.

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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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