Pentair Diffuser Gasket | Ultra-Flow Pool & Spa Pump | 39006600
Pentair Pool Products and Parts

Pentair Diffuser Gasket | Ultra-Flow Pool & Spa Pump | 39006600

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SKU:
39006600

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About This Item

OEM Diffuser Gasket for the Pentair Ultra-Flow Pump

The Pentair 39006600 is the OEM replacement diffuser gasket for the Ultra-Flow pool and spa pump. If your pump is losing prime, producing reduced flow, or showing signs of air ingestion behind the diffuser, this gasket is the correct service part to restore a proper seal between the diffuser and pump housing.

What It Does

The diffuser gasket seals the mating surface between the pump diffuser and the volute housing. A failed or compressed gasket allows air to bypass the seal, disrupting hydraulic efficiency and causing the pump to lose prime. Replacing this gasket at the first sign of seal failure prevents secondary damage to the impeller and motor.

Specifications

Pentair Part Number 39006600
Part Type Diffuser Gasket
Fits Equipment Pentair Ultra-Flow Pool and Spa Pump

Pro Tip

When replacing the diffuser gasket, inspect the diffuser itself for cracks or warping — a damaged diffuser face will prevent even a new gasket from sealing correctly. Match the part number 39006600 to the number molded or stamped on your original gasket before ordering to confirm fitment. Verify your specific pump model against your equipment manual, as compatibility data for this part is limited in available documentation.

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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