SKU: 78366452634

PENTAIR DIFFUSER 5 HP WF PUMP XF - 400011Z

$70.68 $78.53
Save 10%
No.2 Bestseller on watersyst.com >

Pay in installments of $19.63 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

PENTAIR DIFFUSER 5 HP WF PUMP XF - 400011ZThe Pentair 400011Z Diffuser is a critical replacement component for 5HP WhisperFloXF and Max E ProXF inground pumps, designed to maximize flow efficiency and minimize energy consumption for pool contractors. This genuine Pentair part ensures optimal water distribution while reducing turbulence, making it essential for maintaining peak pump performance in commercial and residential installations. Professional Installation Benefits Pool contractors

The Pentair 400011Z Diffuser is a critical replacement component for 5HP WhisperFloXF and Max-E-ProXF inground pumps, designed to maximize flow efficiency and minimize energy consumption for pool contractors. This genuine Pentair part ensures optimal water distribution while reducing turbulence, making it essential for maintaining peak pump performance in commercial and residential installations.

Professional Installation Benefits

Pool contractors rely on this diffuser to restore pump efficiency and extend equipment lifespan. The precision-engineered design reduces service callbacks by ensuring proper water flow dynamics, while the durable construction withstands demanding commercial applications. Compatible with existing Pentair pump systems, this diffuser minimizes installation time and labor costs for busy contractors.

Why Pool Contractors Choose MT Pools

MT Pools delivers superior customer service with daily recurring customer support, ensuring you have the genuine Pentair parts needed to complete jobs on schedule. Our B2B wholesale pricing structure protects your profit margins while our reliable inventory keeps your service operations running smoothly.

Frequently Asked Questions

Which Pentair pumps use the 400011Z diffuser?

The 400011Z diffuser is specifically designed for 5HP WhisperFloXF and Max-E-ProXF inground pumps, ensuring perfect compatibility and optimal performance.

Do I need special O-rings for installation?

Yes, specific O-rings for the 5HP model (part number 355331Z) are recommended for proper sealing and optimal performance during installation.

How does this diffuser improve pump efficiency?

The diffuser optimizes water distribution, minimizes turbulence, and maximizes flow rates, resulting in reduced energy consumption and improved overall pump performance.

What warranty coverage does MT Pools provide?

MT Pools offers comprehensive warranty support with manufacturer backing, plus our superior customer service ensures any issues are resolved quickly for pool contractors.

Order Your Pentair Diffuser Today

Keep your pump installations and service calls profitable with genuine Pentair replacement parts from MT Pools. Our expert team provides technical support and fast shipping to keep your projects on schedule.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 78366452634

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 20 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
Margarita Garza
Houston, US
★★★★★ 5
Totally worth it!
Color: Blue Face/Silver Strap
This looks better in person. I had purchased it for my husband as he was looking for a dress watch. This is perfect! The watch is beautiful and the packaging is beautifully done. I'm beyond happy with this product and plan to buy another one in a different color for my son. Definitely go for it and buy it. It's worth it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 3
Beautiful, but......
Color: White Face/Silver Strap
This watch is beautiful but.....! I bought 6 OLEVS watches for my husband and this is the only one that im mad at. Out of 6, this is the only one that I had pins strip when I tried to remove links. Very unsatisfied with the pin quality on this specific watch
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025
B
Verified Purchase
Bob Elmore
Lake Worth, US
★★★★★ 5
Great watch Great Great price
Color: Blue Face/Two Tone Strap
Great watch for the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
A
Verified Purchase
Amazon Customer
New York, US
★★★★★ 1
Beautiful watch but flawed
Color: Gold Face/Gold Band, Color: Gold Face/Gold Band
This is a decent quality watch for the price. Been wearing daily for a few months now. It has maintained its color and been resistant to scratches. The sub dials are a fully functional timer/chronograph. Calendar is great addition. The band is good quality with tight fit. Mine came with a sizing tool which was awesome. Removed 3 links for a perfect fit. Not a big fan of the butterfly latch on the band as it can release when you bend your hand down, but for the look and price, I don't mind. Unfortunately, the other day, I took the family to Lake Tahoe where I slipped into the water at the shore. It was about a foot deep and soaked my clothes but no big deal. Shortly after I checked the time and saw water on the inside of the glass. I then noticed the reset button for the chronograph had fallen out. I thought it must have been from falling into the water though I couldn't understand how my wrist could have jarred the button out. When I got home, I found the button on the floor in front of the watch box that I keep it in. This means it just randomly fell out. It pushes back in but can be easily removed and the chronograph no longer works at all. The watch still runs but the water doesn't seem to want to dry out. Very disappointed as I really liked this watch. I wanted to contact Olevs about the 12 month quality warranty they claim on Amazon but couldn't find a way to contact them directly on Amazon. No contact info or links. The only options were product and seller feedback. Oh, and an address in China. Not much help. Glad to revise my review if the seller reaches out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2024
J
Verified Purchase
Jose Correa
Houston, US
★★★★★ 5
Stunning Automatic Watch With TopTier Durability and Precision
Color: Grey
“I got this Tissot PRX for my cousin’s birthday and bro fell in LOVE instantly. This thing keeps time like a beast, never slows down, never lags. Automatic movement, so no batteries, no drama. Durability? Stupid good. You can hit it, bump it, live life rough, it still looks box fresh. Size wise it was almost perfect. I just had to remove two links, nothing big. It’s light, functional, comfortable, doesn’t weigh you down, doesn’t get in the way but more importantly I can say this watch is in everyone’s eyesight when we wear it. Cause of course I had to get another one! Basically. I gave him a very nice piece as a gift, and now he’s walking around like he owns Switzerland.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025

recommand products

87-2180- 4" Diameter Full Radius Solid Carbide Slitting Saws -Hill Industrial Tools
189.38
86-5090-C- .5" Diameter 90Deg Included Angle Dovetail Cutter With A Tip Radius -Hill Industrial Tools
132.26
95-2050- .75" Diameter Solid Carbide Slitting Saws -Hill Industrial Tools
130.27
95-2400- 2.25" Diameter Solid Carbide Slitting Saws -Hill Industrial Tools
102.36
Atticus Golf Carts Blue Green Wallpaper
19.00