Pentair Seal Diffuser | Challenger / SuperFlo / SuperMax Pumps | 355030Z
Pentair Pool Products and Parts

Pentair Seal Diffuser | Challenger / SuperFlo / SuperMax Pumps | 355030Z

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SKU:
355030Z

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About This Item

The Pentair Seal Diffuser (355030Z) is the OEM replacement seal diffuser for the Challenger High Flow, SuperFlo, and SuperMax pump families.

⚠️ IMPORTANT: MANUFACTURE DATE APPLIES TO VARIABLE SPEED MODELS
For the SuperFlo VS/VST and SuperMax VS variable speed pumps, this diffuser fits units manufactured before 06/17/19 only. Check the date code on your pump's label before ordering if you have a variable speed model.

⚠️ IMPORTANT: CHALLENGER HIGH FLOW — HORSEPOWER EXCLUSION
This diffuser fits all Challenger High Flow pump models except the 5 HP configuration. Confirm your pump's horsepower rating before ordering.

The seal diffuser sits between the impeller and the mechanical shaft seal inside the pump volute, directing water flow through the pump while maintaining the seal housing's alignment and integrity. A cracked or worn diffuser allows water to bypass the impeller rather than being directed through the pump, resulting in reduced flow, loss of prime, and accelerated wear to the shaft seal assembly. Replacing it restores designed hydraulic performance and protects the seal from premature failure.

Specifications

Pentair Part Number 355030Z
Part Type Seal Diffuser
Quantity Included 1 (Each)

Fits Into

Brand Equipment Line Model / Part Number Notes
Pentair SuperMax — Pool Pump 348191 Seal Diffuser
Pentair SuperFlo VS/VST Variable Speed Pump SUPERFLO-VS-VST Mfg. Before 06/17/19
Pentair SuperFlo VS/VST Variable Speed Pump SUPERFLO VS/VST Mfg. Before 06/17/19
Pentair SuperMax VS Variable Speed Pump SUPERMAX-VS Mfg. Before 06/17/19
Pentair SuperMax VS Variable Speed Pump SUPERMAX VS Mfg. Before 06/17/19
Pentair Challenger High Flow Pump CF-N1-3/4F All except 5 HP
Pentair Challenger High Flow Pump CF-N1-3/4FE All except 5 HP
Pentair Challenger High Flow Pump CF-N1-1-1/2FE All except 5 HP
Pentair Challenger High Flow Pump CF-N1-2FE All except 5 HP
Pentair Challenger High Flow Pump CF-N2-1F All except 5 HP
Pentair SuperFlo Single Speed Motor — 3/4 HP 354803S SuperFlo pump seal diffuser
Pentair SuperFlo Single Speed Motor — 1 HP 354821S SuperFlo pump seal diffuser
Pentair SuperFlo Single Speed Motor — 1-1/2 HP 354823S SuperFlo pump seal diffuser
Pentair SuperFlo Single Speed Motor — 2 HP 354815S SuperFlo pump seal diffuser
Pentair SuperMax Motor — 3/4 HP 354804S Seal diffuser — SuperMax pump part
Pentair SuperMax Motor — 1 HP 354822S Seal diffuser — SuperMax pump part
Pentair SuperMax Motor — 1-1/2 HP 354824S Seal diffuser — SuperMax pump part
Pentair SuperMax Motor — 2 HP 354816S Seal diffuser — SuperMax pump part
Pentair SuperMax Motor — 1 HP SQFL 355021S Seal diffuser — SuperMax pump part
Pentair SuperMax Motor — 1-1/2 HP SQFL 355023S Seal diffuser — SuperMax pump part
Pentair SuperMax Motor — 2-1/2 HP SQFL 355027S Seal diffuser — SuperMax pump part
Pentair Efficient SuperMax Motor — 1.5 HP SQFL 355011S Seal diffuser — SuperMax pump part
Pentair Efficient SuperMax Motor — 2 HP SQFL 355013S Seal diffuser — SuperMax pump part

Compatibility is based on Pentair

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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