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Heat Exchanger, Hayward H400FD

Marsoni M251S
Sale price$908.65
Pay 4 payments of $227.16 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Heat Exchanger, Hayward H400FDReplace your Hayward H400FD heater heat exchanger with this FDXLHXA1400 replacement part. This heat exchanger is designed for Hayward H400FD pool and spa heaters.
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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
4.2 ★★★★★
Based on 1236 reviews
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Product Reviews
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Verified Purchase
Leirad
Port Orchard, US
★★★★★ 5
👍
Facil recambio y garantía certificada
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 15, 2024
T
Texas KnowHow
Phoenix, US
★★★★★ 5
Perfect fit on 2008 Honda CRV LX
This KAX air filter was an excellent fit in a 2008 Honda CRV LX. The construction components of the filter (gasket, frame, and filter) are of good quality. I feel good putting this aftermarket filter in the car for the next 12k-15k miles. I took a picture of this filter next to the filter I replaced for frame/size comparison; it is an exact match. Additionally, the filter was wrapped in sealed plastic, boxed, and came with directions.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2024
A
Verified Purchase
Andrew Ferguson
Louisville, US
★★★★★ 3
It's ok
Descent
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Reviewed in the United States on April 5, 2026
D
Verified Purchase
David Wayne lynch
Lowell, US
★★★★★ 5
Game changer for my truck
Size: 1.9" x 9.9" x 11.4"
I installed this K&N Lifetime Cabin Air Filter in my 2016 F-150 and noticed the difference right away. The airflow is stronger, and the cabin smells fresher even when driving through dusty or humid areas. What I really like is that it’s washable and reusable—so I won’t have to keep buying filters every year. Fitment was perfect and install took under 10 minutes. Just pop out the old one, slide this one in, and you’re good to go. It feels solid and well made, not like those cheap paper ones. It’s definitely worth the investment, especially if you drive a lot or have allergies. Highly recommend for anyone with a Ford or Lincoln vehicle—it pays for itself quickly!
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Reviewed in the United States on July 3, 2025
B
Verified Purchase
Bill
Draper, US
★★★★★ 5
Fit 2024 F250 Platinum
Size: 1.9" x 9.9" x 11.4"
Good quality, perfect fit.
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Reviewed in the United States on April 16, 2026

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