Skip to content

Pentair ETI 400 Gas Heater Water Bypass Assembly — Part 475621

Marsoni M251S
Sale price$79.99
Pay 4 payments of $20.00 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Pentair ETI 400 Gas Heater Water Bypass Assembly — Part 475621Protect your Pentair ETI 400 gas heater from excessive water flow with the genuine Water Bypass Assembly, part number 475621. This safety critical component is required whenever the water flow rate through the heater exceeds the maximum 120 GPM threshold. Once the manual bypass valve is installed, you can fine tune it to bring flow within the heater's safe operating range, preventing internal damage from overpressure. Designed exclusively for the
Easy Shipping

Quick Dispatch:

Your Pentair ETI 400 Gas Heater Water Bypass Assembly — Part 475621 orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Pentair ETI 400 Gas Heater Water Bypass Assembly — Part 475621 ships.

Need Help?
Questions about Pentair ETI 400 Gas Heater Water Bypass Assembly — Part 475621, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Pentair ETI 400 Gas Heater Water Bypass Assembly — Part 475621 in your area.

Get Shipping Estimates

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
4.9 ★★★★★
Based on 885 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Amazon Customer
Houston, US
★★★★★ 5
So cute and great quality!
So cute, we had them for months and they look the same and still smell amazing!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 16, 2025
A
Verified Purchase
Amazon Customer
Waukegan, US
★★★★★ 5
Great Shoes
Size: 10, Color: Cognac
Love these shoes super comfortable and look great. Everyone asks me where I got them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 5
Beautiful shoe but too narrow
Size: 10 Wide, Color: Navy Grainy Leather
Too narrow
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
T
Verified Purchase
Tim Arnette
Birmingham, US
★★★★★ 5
Looks good feels good
Size: 13 Wide, Color: Black
I've had them 2 weeks and love them. Took a little breaking in but they feel great now.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
E
Verified Purchase
Elizabeth Henderson
Whiting, US
★★★★★ 4
Very narrow
Size: 10 Wide, Color: Cognac
Run narrow. For very narrow feet. Wide width fits like a regular width.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026

recommand products