Pentair 50 Watt UV Lamp | BioShield UV System 50 Watt | 523035
Pentair Pool Products and Parts

Pentair 50 Watt UV Lamp | BioShield UV System 50 Watt | 523035

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SKU:
523035

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About This Item

OEM Replacement UV Lamp for the Pentair BioShield UV System

The Pentair 50 Watt UV Lamp (523035) is the OEM replacement lamp for the BioShield UV System 50 Watt (Model 522635), restoring full germicidal output to your residential UV sanitation system.

What It Does

The UV lamp is the active element of the BioShield system, emitting high-output ultraviolet light to neutralize bacteria, algae, and other microorganisms as water passes through the treatment chamber. When lamp output degrades over time — even before the bulb visibly fails — UV dose drops below effective treatment levels. Replacing the lamp on schedule maintains the system's sanitizing performance. Match part number 523035 to the number printed on your existing lamp before ordering.

Specifications

Pentair Part Number 523035
Part Name 50 Watt UV Lamp
Wattage 50W
Quantity Included 1 (Individual Pack)

Fits Into

Brand Equipment Line Model / Part Number Notes
Pentair BioShield UV System 50 Watt 522635 50 Watt UV Lamp

Compatibility is based on Pentair 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.

Pro Tip

UV lamps lose germicidal effectiveness gradually — output can fall below treatment thresholds well before the lamp stops illuminating. Follow Pentair's recommended replacement interval for the BioShield system rather than waiting for the lamp to burn out visibly. When replacing the lamp, handle it by the end caps only; skin oils on the quartz sleeve can create hot spots that shorten lamp life.

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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