Pentair Stainless Steel Split Lock Washer 1/2" | EQ-Series Commercial Pump | 350063Z
Pentair Pool Products and Parts

Pentair Stainless Steel Split Lock Washer 1/2" | EQ-Series Commercial Pump | 350063Z

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SKU:
350063Z

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About This Item

The Pentair 350063Z is the OEM replacement stainless steel split lock washer for the EQ-Series Commercial Pool and Spa Pump, sold in a pack of four.

⚠️ IMPORTANT: SOLD AS A PACK OF 4
This listing includes four (4) split lock washers — not a single washer. Order accordingly based on the number of fasteners you are servicing.

The split lock washer provides tension and vibration resistance at fastener connection points on the EQ-Series pump assembly. The stainless steel construction resists corrosion in wet pool and spa environments, maintaining clamping force over the service life of the equipment.

Specifications

Pentair Part Number 350063Z
Material Stainless Steel
Size 1/2"
Quantity Included 4 per pack

Pro Tip

When replacing fastener hardware on the EQ-Series pump, inspect all mating surfaces for corrosion or deformation before reinstalling. Replace washers as a complete set at each fastener location rather than individually — consistent clamping force across all connection points helps maintain proper pump assembly integrity. Match the 1/2" size designation to the fastener specification in your EQ-Series installation manual before ordering.

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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