Pentair 356358Z 1.1 THP SuperFlo Max pump diffuserPentair 1.1 THP SuperFlo Max Diffuser, 356358Z$9899
Pentair 356358Z 1.1 THP SuperFlo Max pump diffuser
Shop all Pentair

Pentair 1.1 THP SuperFlo Max Diffuser, 356358Z

Ask a questionMPN 356358Z
$9899
Out of stock
Get volume pricing Request a quote

30 day returns · Easy, with prepaid labels provided

Quick overview

  • Genuine Pentair part Factory diffuser 356358Z, matched to the SuperFlo Max wet end.
  • Sized for 1.1 THP This diffuser is the one paired with the 1.1 total horsepower SuperFlo Max.
  • Directs impeller flow The diffuser channels water leaving the impeller into the volute, which is where the pump makes its pressure.
  • Protects your efficiency A cracked or worn diffuser lets water recirculate inside the pump instead of going to the filter.
  • Pairs with the matching impeller The 1.1 THP SuperFlo Max impeller is a separate part, and the two wear together.
  • Direct replacement Drops into an existing SuperFlo Max in place of the original diffuser.
Full description and specifications ↓

Need a hand?

Bilingual support from pool professionals.
(888) 751-8084CallChat with a techChatEmail usEmail

Send us a message

A pool professional will get back to you, usually the same business day.

About Pentair 1.1 THP SuperFlo Max Diffuser, 356358Z, SKU PUR-101-0103. We will include it with your message.

We use your details to answer this message and nothing else.

Frequently bought together

Current item Pentair 1.1 THP SuperFlo Max Diffuser, 356358Z
Pentair

1.1 THP SuperFlo Max Diffuser, 356358Z

$9899
Pentair Genuine OEM High Flow Diffuser O-Ring, 355030
Pentair

Genuine OEM High Flow Diffuser O-Ring, 355030

$1799
Pentair SuperFlo Seal Bracket O-Ring, 355619Z
Pentair

SuperFlo Seal Bracket O-Ring, 355619Z

$1699
Pentair 1.1 THP SuperFlo Max Impeller, 356356Z
Pentair

1.1 THP SuperFlo Max Impeller, 356356Z

$6399
Pentair Superflo Pump Housing, Volute, 350089Z
Pentair

Superflo Pump Housing, Volute, 350089Z

$26599
Pentair Impeller Locking Screw, 355389
Pentair

Impeller Locking Screw, 355389

$999
Pentair Mechanical Shaft Seal, 5/8", 354545S
Pentair

Mechanical Shaft Seal, 5/8", 354545S

$3499
Subtotal

Similar products

Other products people compare with this one.

Pentair 355618Z SuperFlo and SuperMax diffuser, 1-1/2 HP thru 2 HP Pentair SuperFlo and SuperMax Diffuser, 1-1/2 HP Thru 2 HP, 355618Z$9499 Pentair 355617Z diffuser for SuperFlo and SuperMax pumps, 1/2 HP through 1 HP Pentair SuperFlo Diffuser, 1/2 HP Thru 1 HP, 355617Z$8899 Pentair SuperFlo VST Diffuser, Pumps Manufactured After 6/17/19, 355949Z$9599 Pentair 356012Z seal plate for SuperFlo, Pinnacle and Sta-Rite SuperMax pumps Pentair SuperFlo Seal Plate, 356012Z$8399 Pentair 356324Z SuperFlo VS 25 foot automation cable wiring kit Pentair SuperFlo VS Automation Cable Wiring Kit, 25', 356324Z$7299 Pentair 355074Z high flow pump impeller, 1 HP full rated and 1.5 HP up rated Pentair Super Flo/Max Impeller, 1 HP Full Rated / 1.5 HP Up Rated, High Flow, 355074Z$6099 Pentair 355086Z high flow impeller for SuperFlo, SuperMax and Challenger pumps Pentair SuperFlo and SuperMax Impeller, 1.5 HP Full Rated / 2 HP Up Rated, High Flow, 355086Z$5999 Pentair 351157 1.5 inch black union kit for SuperMax and SuperFlo pumps Pentair 1.5" Black Union Kit for SuperMax and SuperFlo, 351157$8199 Pentair 356071Z SuperFlo VST sealplate Pentair SuperFlo VST Sealplate, 356071Z$8899 Pentair 355093Z impeller, 2 HP full rated and 2-1/2 HP up rated high flow Pentair Impeller, 2 HP Full Rated / 2-1/2 HP Up Rated, High Flow, 355093Z$5499
Pentair 350090Z Cam and Ramp strainer lid clamp for SuperFlo pumps, almond Pentair Cam and Ramp Strainer Lid Clamp, SuperFlo, 350090Z$4399 Pentair 356197 chemical, salt and ozone resistant seal set for SuperFlo and SuperMax pumps Pentair SuperFlo and SuperMax Seal Kit, Chemical, Salt and Ozone Resistant, 356197$3899 Pentair 350091Z clear strainer cover for SuperFlo pool pumps Pentair Strainer Cover for SuperFlo Pool Pump, 350091Z$3799 Pentair OEM Pump Basket SuperFlo Pinnacle SuperMax | 355667 Pentair OEM Pump Basket SuperFlo Pinnacle SuperMax | 355667$3099 Pentair 350093 union adapter for SuperFlo and SuperMax pool pumps Pentair SuperFlo and SuperMax Union Adapter, 350093$2299 Pentair 355334 hex washer head diffuser screw for Challenger and SuperFlo pumps Pentair Hex Head Screw for Diffuser, 355334$799 Pentair 353010 SuperFlo volute housing assembly kit, almond Pentair SuperFlo Volute Housing Assembly Kit, 353010$35199 Pentair 353127 drive with cover kit for the SuperFlo VS variable speed pump Pentair Drive with Cover Kit for SuperFlo VS Pump, 353127$74399 Pentair 072184 stainless steel washer, 3/8 in. by 13/16 in. Pentair Washer 3/8"x13/16", 072184$1099 Pentair 6020018 adapter o-ring, size #2-226, for SuperFlo pumps Pentair O-Ring Adapter #2-226, 2 Req., 6020018$699

Product details

The Pentair 356358Z is the replacement diffuser for the 1.1 THP SuperFlo Max pump. It is the genuine Pentair part.

What the diffuser does

Water leaving the impeller is moving fast and in every direction. The diffuser is the shaped housing that takes that flow and organizes it into the volute, converting speed into pressure. It is a quiet part that never moves, which is exactly why it gets overlooked when a pump starts to underperform.

Symptoms of a worn diffuser

A cracked diffuser, a broken hub or a sealing face that no longer meets the volute lets water loop back inside the pump instead of heading to the filter. The motor still runs at full speed and sounds normal, but flow at the returns falls off and the system takes longer to turn the pool over.

Before you order

Confirm your pump is the 1.1 THP SuperFlo Max, since the diffuser is matched to the impeller for that rating. The impeller is a separate part, and if the diffuser has failed it is worth checking the impeller at the same time.

Specifications
Brand Pentair
Manufacturer part number 356358Z
UPC 788379887926
Type Pump diffuser
Rating 1.1 THP
Fits Pentair SuperFlo Max
Shipping weight 0.44 lb
Ships Parcel

Request a quote

Need a volume price, a freight quote, or pricing in writing before you order? We reply the same business day.

Request a quote

From Pentair

Your trusted source for all things pool. Pentair

Pentair equipment

Pentair SuperFlo VS 1.5 HP Variable Speed Pool Pump, EC-342001 Pentair MasterTemp 400 Natural Gas Pool Heater, EC-462028 Pentair Clean & Clear Plus 420 sq ft Cartridge Pool Filter, EC-160301 Pentair IntelliConnect Control & Monitoring System with Wi-Fi, EC-523317
Shop Pentair equipment

Genuine Pentair parts

Pentair Genuine OEM Seal Kit for WhisperFlo and IntelliFlo Pool Pumps, 356198 Pentair Genuine OEM High Flow Manual Air Relief Valve, 98209800 Pentair Genuine OEM FNS Plus Element Assembly Complete, 48 Sq Ft, 59023400 Pentair Genuine OEM MasterTemp/Max-E-Therm 6-Button Control Board Kit, 461105Z
Shop Pentair parts
Pool lighting: a backyard pool and spa lit in blue and green at nightPool water treatment: three people floating on rings in clear blue water, seen from abovePool cleaners: a toddler in flower sunglasses laughing in a yellow ring, held by her mother
Pentair makes pumps, filters, heaters, salt chlorinators, cleaners, lighting and automation for pools and spas.Shop all Pentair

Customer reviews

More from Pentair

Pentair SuperFlo VS EC-342001 1.5 HP variable speed pool pump, front view Pentair SuperFlo VS 1.5 HP Variable Speed Pool Pump, EC-342001$1,48900 Pentair SuperFlo EC-348190 single speed pool pump, 1 HP, 115/230V Pentair SuperFlo 1 HP Single Speed Pool Pump, 115/230V, EC-3481905.0 (1) $74800 Pentair WhisperFlo VS EC-011533 2.6 THP variable speed pool pump, top view Pentair WhisperFlo VS 2.6 THP Variable Speed Pool Pump, 115/208-230V, EC-011533$1,79900 Pentair 262506 HiFlow 1.5 in. six way clamp style multiport valve Pentair Genuine OEM HiFlow Valve 1.5 in. 6-Way Clamp Style, 262506$20399 Pentair EC-520556 IntelliChlor 110/220V power center Pentair 110/220V IntelliChlor Salt Chlorine Generator Power Center, EC-520556$79900 Web Price Pentair 523769 IntelliChlor Plus and LT replacement sensor board Pentair IntelliChlor Plus and LT Replacement Sensor Board, 523769$39299 Pentair 350305S 3.2 kW 10 pole variable speed motor for IntelliFloXF and IntelliFlo 2 VST pumps Pentair 3.2 kW IntelliFloXF VSF, VSF, VS+SVRS, i1, i2 Motor, 350305S$78199 Pentair 523735-EC IntelliChlor Plus40 salt chlorine generator cell Pentair IntelliChlor Plus40 Salt Chlorine Generator Replacement Cell, 40,000 Gallons, 523735-EC$1,81900 Web Price Pentair Rainbow 320 in-line chlorinator R171096, front view Pentair Rainbow 320 In-Line Chlorinator, R171096$14499 Pentair 190003 tank clamp kit with tension control for Clean and Clear Plus, FNS Plus and Quad DE filters Pentair Genuine OEM Clamp Kit with Tension Control, 190003$30199
Pentair IntelliChlor LT25 salt chlorine generator cell 523747-EC Pentair IntelliChlor LT25 Salt Chlorine Generator Cell, 25,000 Gallons, 523747-EC$1,14900 Pentair IntelliFlo VS+SVRS variable speed pool pump, EC-011057 Pentair IntelliFlo VS+SVRS Variable Speed Pool Pump, EC-011057$2,39900 Pentair 170145 cartridge pack for Sta-Rite System 3 S7M120, inner and outer cartridges Sta-Rite 170145 System 3 S7M120 Large and Small Cartridge Set, 25021-0200S and 25022-0201S$46499 Pentair 261055 SM-20-3 2 in. side mount multiport valve kit, front view Pentair 2 in. Multiport Valve Kit for Side Mount Sand Filters, SM-20-3, 261055$29999 Pentair 523770 IntelliChlor Plus replacement controller (HMI), black Pentair IntelliChlor Plus Controller Replacement (HMI), Black, 523770$38399 Pentair 261152 SM20-2 2 in. side mount multiport valve kit for DE filters Pentair 2" Valve Kit Multiport, Side Mount DE Filters SM20-2, 261152$29799 Pentair 357149 WhisperFlo and IntelliFlo volute housing replacement kit, front view Pentair WhisperFlo and IntelliFlo Volute Housing Replacement Kit, 357149$28799 Pentair MicroBrite Color LED pool light EC-620425, 12 volt, 14 watt, with 100 ft cord Pentair MicroBrite Color LED Pool Light 12 Volt, 14 Watt with 100' Cord, EC-620425$61900 Pentair 59023400 FNS Plus 48 sq ft complete DE grid assembly Pentair Genuine OEM FNS Plus Element Assembly Complete, 48 Sq Ft, 59023400$39399 Pentair Amerlite EC-602128 500W 120V inground pool light with stainless steel facering Pentair Amerlite Pool Light for Inground Pools with Stainless Steel Facering, 500W 120V 50' Cord, EC-602128$43900 Web Price

Questions and answers

What people ask about this product, answered by our pool techs.

Which pump does this diffuser fit?
It is the Pentair diffuser for the 1.1 THP SuperFlo Max, part number 356358Z.
Will it fit a different horsepower SuperFlo Max?
This listing is the 1.1 THP part. Check the horsepower rating on your pump before ordering, because the diffuser is matched to the impeller.
Should I replace the impeller at the same time?
It is worth inspecting. The impeller and diffuser run as a pair and wear together, and the 1.1 THP SuperFlo Max impeller is sold separately.
How do I know the diffuser has failed?
Cracks, a broken hub or a worn out sealing face let water recirculate inside the pump, so flow at the returns drops even though the motor sounds normal.
Ask your own question