Home

Explore

View Cart

Deals

Saved

Suggested searches

Plant-based protein powders
Vegan leather handbags
Bedroom decor
Waterproof jackets
Hoodies

Learn more about how we use your data to personalize your experience and ads. Recommendations are for informational purposes only.

EZ Pools

Pentair Challenger Pump Diffuser 355188 355188Z

Pentair Challenger Pump Diffuser 355188 355188Z

EZ Pools

Pentair Challenger Diffuser

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$66.00

Color

Black

Quantity

Product description loading

Product description loading

This is the product description text that will appear here.

Shopping designed around you.

Start selling

For brands

For creators

Build your store

Information

Shop Pay

Help center

Social

X (Twitter)

Instagram

Legal

Terms of Service

Privacy Policy

Your Privacy Choices

Powered by

|

Start selling for free

Language

© Shopify Inc. 2026

Quantity

1

Description

Replacement diffuser for Pentair Challenger high-pressure pumps (Pentair 355188Z), fitting 3/4 HP full-rated through 1-1/2 HP up-rated models including CHII-NI-3/4F, CHII-NI-1F, CHII-NI-1A, and CHII-NI-1-1/2A. It channels water off the impe...

Delivery & Returns

Returns accepted within 30 days

Exclusions may apply. See full policy

EZ Pools

EZ Pools

4.7 (1K)

You might also like

Pentair Challenger High Head Pump Diffuser 355148

EZ Pools

Pentair Challenger High Head Diffuser

Sta-Rite CristalFlo II Pool Drain Gasket

EZ Pools

Sta-Rite CristalFlo II Drain Gasket

Pentair Challenger Pump Diffuser 355069Z

EZ Pools

Pentair Challenger Diffuser 355069Z

Pentair Challenger Diffuser 355545 for pool and spa pumps

EZ Pools

Pentair Challenger Diffuser 355545

CMP 25830-500-000 Serviceable Check Valve 2in S x 2.5in SPG

EZ Pools

CMP 25830-500-000 Serviceable Check Valve 1/4 lb 2 in S x 2.5 in SPG

Poolweb

Diverter Kit - Never Lube Positive Seal

Poolweb

Challenger/Waterfall Front Housing - Black

3/4 HP Pump Motor 56Y Frame - 1-Speed 1-Phase 115/208- 230 Volts - Energy Efficient, B2661

EZ Pools

Century B2661 3/4 HP Pump Motor, 56Y, 115/208-230V, Energy Efficient

Jandy 4718 NeverLube 2-Port CPVC Diverter Valve 2.5-3 in

EZ Pools

Jandy 4718 NeverLube 2-Port CPVC Diverter Valve 2.5-3 in

Poolweb

Clean and Clear Plus Parts Kit

Skim-A-Round

3.6

(808)

Pentair Challenger Pump Band Clamp Assembly

EZ Pools

Pentair Challenger Band Clamp Assembly 355320Z

Pentair 1.5 HP Pool Pump Motor Replacement

EZ Pools

Pentair 1.5 HP Pool Pump Motor Replacement - 355024S

(1)

Pentair 261185 2-inch 6-way clamp style multiport valve for pool filters

EZ Pools

Pentair 2-Inch 6-Way Clamp Style Multiport Valve

(1)

Voomi Supply

Pentair C105-236P Impeller Pump Parts

Pentair Challenger High Pressure Pump Diffuser 355188

EZ Pools

Pentair Challenger Pump Diffuser

Poolweb

Challenger Pump Repair Kit With Seal and O-Rings

(1)

Pentair Challenger 355317 Diffuser Mounting Plate

EZ Pools

Pentair Challenger Diffuser Mounting Plate

Pentair 4.3 HP VFD Square Flange Motor 230V for IntelliPro

EZ Pools

Pentair 4.3 HP VFD Pump Motor 230V 56Y Square Flange

Pentair 261177 - 1-1/2 inch Multiport

EZ Pools

Pentair 261177 - 1-1/2" Pre-Plumbled Multiport Valve

WaterGuru

4.6

(580)

digital pool water tester

digital pool water tester

WaterGuru SENSE 10" Skimmer Adapter

Pentair 356238Z diffuser for IntelliFlo 3.0 VSF VS+SVRS, compatible replacement from SOS Pool.

21% off

SOS Pool & Spa Supplies

Pentair Diffuser IntelliFlo 3.0 VSF VS+SVRS | 356238Z

Pentair TR40 3-1/4 inch air spacer replacement

EZ Pools

Pentair Triton II TR40 Air Spacer

Hayward RCX75005 Inlet Flap, Hayward TigerShark

EZ Pools

Hayward RCX75005 Inlet Flap, Hayward TigerShark

Poolweb

TR100C/140C Internal Spacer - 2 Inch

Poolweb

Drain Cap or Valve Stem O-Ring

Pentair impeller replacement for pool pump

EZ Pools

Pentair 355043 Impeller Assembly

EZ Pools

Pentair 1.5" Tagelus Multiport 262506 Valve for TA30/40/50/60

(1)

Poolweb

Pro Series 3-Port Valve Cover - CPVC

(1)

Poolweb

Hi-Flow 1-1/2 and 2 Inch Valve Adapter

Pool Geek

4.7

(2.9K)

Pentair Challenger CHII Series Pump Repair Kit – Vita Pool Supply

Vita Pool Supply

Pentair Challenger CHII Series Pump Repair Kit

Pentair Challenger Diffuser 1.5 HP Replacement 355270Z

EZ Pools

Pentair Challenger Diffuser

SuperFlo/Max Pump Impeller - 3/4 HP Full-Rated and 1 HP Up-Rated, 355067

EZ Pools

Pentair 3/4HP - 1HP Impeller for SuperFlo, Challenger, SuperMax, 355067

Poolweb

Triton II V-Thread Closure

Pentair 154440 air relief tube connector for Triton sand filters

EZ Pools

Pentair Air Relief Tube Connector

Pentair Challenger 3/4 HP impeller replacement 355187

EZ Pools

Pentair Challenger High Pressure Impeller

(1)

Pentair 98209800 High Flow Manual Air Relief Valve Assembly - EZ Pools

16% off

EZ Pools

Pentair High Flow Manual Air Relief Valve for CCP / FNS Plus Filters

Poolweb

Clean and Clear Plus Adapter Union Kit - 2-1/2 x 2 Inches

Poolweb

606/608 Spring Bolt Kit - Stainless Steel

Poolweb

Air Relief Gasket

Black Pentair SuperFlo pump diffuser replacement part on white background.

19% off

ePoolSupply

Pentair SuperFlo Diffuser 1.5HP and 2HP || 355618Z

Pentair TR100 Upper Piping Assembly Replacement

EZ Pools

Pentair TR100 Upper Piping Assembly Replacement

Pentair Pump Lid O - Ring | 350013Z - Pump Parts - img - 1

39% off

Aqua Pool Supply

Pentair Pump Lid O-Ring | 350013Z

Poolweb

Prowler 820 Power Supply

(3)

Pentair Challenger 1HP and 1.5HP Pool Pump Diffuser

EZ Pools

Pentair Challenger 355077Z Diffuser

Pentair Challenger pump seal kit packaged with O-rings and seals on display card

32% off

ePoolSupply

Pentair Seal Kit for Challenger Pump – Genuine Pump Replacement | 356199

OxygenPools

5

(20)

Challenger SuperMax Pump Impeller - 1-1/2 HP Full-Rated and 2 HP Up-Rated, 355086

EZ Pools

Pentair 2HP Impeller for SuperFlo, Challenger, and SuperMax, 355086

Black pump impeller with threaded central hub, shown on a white background.

14% off

ePoolSupply

Challenger High Pressure Pump Impeller, 3/4F, 1A || 355187

Poolweb

Max-E-Pro 1-1/2 to 3 HP Diffuser

Hayward SPX3000BN diffuser for Super II pool pump replacement

EZ Pools

Hayward SPX3000BN Diffuser for Super II Pumps

Hayward ECX1322A Air Relief Valve

38% off

EZ Pools

StarClear Directional Vent Valve with O-Ring | ECX1322A

Poolweb

Clean and Clear Air Bleed Sock Kit

Poolweb

Prowler 920 Warrior SE Power Cable With Swivel

(3)

Poolweb

Taylor Buffer Solution pH 4.0 - 16 Oz. Bottle - R-1099-04-E

SOS Pool & Spa Supplies

Hayward Super Pump VS 620 Pump w/ OmniX | 2.25HP | W3VSP26620

Pentair 273077 2 Inch PVC Slide Valve Plug

EZ Pools

Pentair 273077 2 Inch PVC Slide Valve Plug

Poolweb

Wheel Retainer Clip Next Generation Poolvergnuegen - Black

AutoPilot 952-24 Cell Cord 24ft with 3-Pin

EZ Pools

AutoPilot 952-24 Cell Cord 24ft

Black Pentair Challenger High Flow pump diffuser replacement part, model 355029.

13% off

ePoolSupply

Pentair Challenger High Flow Pump Diffuser 1/2F–1A | 355029

Pentair Challenger Diffuser 2-3 HP Replacement

EZ Pools

Pentair Challenger Diffuser 2-3 HP

Pentair 355094 Challenger Diffuser

EZ Pools

Pentair Challenger Diffuser 355094

Pentair 350105S IntelliFlo motor kit in almond

EZ Pools

Pentair 350105S IntelliFlo Motor Kit

Poolweb

Rebel/Warrior Pool Cleaner Accessory Kit

Pentair Pump Seal Kit for Challenger Pump | 356199 by Pool Supply Depot

Pool Supply Depot

Pentair Pump Seal Kit for Challenger Pump | 356199

Pentair 17307-0110S Tank Body Kit for IntelliPro and Max-E-Pro Pumps, includes Trap Body, Basket, Drain Plugs and Trap Cover.

EZ Pools

Pentair Max-E-Pro Pump Tank Body Kit

National Discount Pool Supplies, LLC

National Discount Pool Supplies, LLC

4.7

(196)

Baquacil Oxidizer 4-gallon case of chlorine-free Step 2 swimming pool water clarifier and liquid shock

Baquacil Oxidizer 4-gallon case of chlorine-free Step 2 swimming pool water clarifier and liquid shock

Baquacil Sanitizer and Algistat Step 1 - 1/2 Gallon Bottle Chlorine Free Pool Chemica

Frog Leap Torpedo Pac

Poolweb

HiFlow Valve Washer - 1/32

Poolweb

FullFloXF Inlet Diverter

Pentair FullFloXF 263081 high performance backwash valve with bottom inlet

EZ Pools

Pentair FullFloXF High Performance Backwash Valve

Pentair 354809S 2 HP 3-phase pump motor

EZ Pools

Pentair 354809S Pump Motor

Pentair Challenger Front Housing 355468 Replacement

EZ Pools

Pentair Challenger Front Housing

Poolweb

Strainer Pot and Admiral Skimmer O-Ring - 2-3/8 Inch I.D.

Pentair 273109 Noncorrosive Slide Valve O-Ring Kit

EZ Pools

Pentair 273109 Noncorrosive Slide Valve O-Ring Kit

Game 4563 Pool Shut Off Valve Replacement

EZ Pools

Game 4563 Shut Off Valve

Pentair 355384 Challenger Diffuser Mounting Plate

EZ Pools

Pentair Challenger Diffuser Mounting Plate

Pentair Challenger 355029Z Diffuser for Pumps

EZ Pools

Pentair Challenger Diffuser 355029Z

(1)

Darlly 10101 100 sq ft filter cartridge for Clean and Clear

EZ Pools

Darlly 10101 Filter Cartridge

Poolweb

Hose Adapter -1-1/2 Inch MPT - Black

Pentair Challenger Strainer Pot Replacement

EZ Pools

Pentair 355300 Challenger Strainer Pot

Seal & Gasket Kit for Pentair Whisperflo® & IntelliFlo® Pumps | GO-KIT32 - EZ Pools

3% off

EZ Pools

Seal & Gasket Kit for Pentair Whisperflo® & IntelliFlo® Pumps | GO-KIT32

(1)

Pentair 263038 2-Way PVC Diverter Valve 1.5 inch x 2 inch

8% off

EZ Pools

Pentair 263038 2-Way PVC Diverter Valve 1.5" x 2"

Poolweb

Sand Filter Bulkhead O-Ring - 3 Inch

(1)

Poolweb

FullFloXF Backwash Valve 2-3 Inch Side Mount, Inlet Port on Top (Sand or D.E.)

Black Pentair WaterFall specialty pump front housing replacement part with threaded inlet and bolt holes.

13% off

ePoolSupply

Pentair WaterFall Specialty Pump Front Housing Replacement | 355302

3% off

EZ Pools

GO-KIT78 Pump O-Ring & Shaft Seal Kit for Pinnacle, SuperFlo & SuperMax Pumps

Aqua Pool Supply

Aqua Pool Supply

4.8

(142)

Hayward 6 Port Module with Valve Shell O - Ring 004302440800 - In Floor Cleaning System Valve Parts - img - 1

Hayward 6 Port Module with Valve Shell O - Ring 004302440800 - In Floor Cleaning System Valve Parts - img - 1

King Tech New Water 407C Chlorine Cycler Pac, 3/Case | 01 - 03 - 4613 - NewWater - img - 1

Pentair IntelliChlor Plus40 Salt Chlorine Generator Cell 40k Gallons 523735 - Salt Chlorine Generation - img - 1

Pentair Intelliflo Keypad, Screen, and Cover Assembly 357527z - Pump Parts - img-2

Poolweb

1 Inch Close Nipple

Poolweb

Pro Series 3-Port Valve Diverter Assembly