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Jandy JXi 400 Heater Heat Exchanger Assembly | R0589405

Marsoni M251S
Sale price$650.00
Pay 4 payments of $162.50 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Jandy JXi 400 Heater Heat Exchanger Assembly | R0589405The genuine Jandy Heat Exchanger Assembly R0589405 is a factory original replacement component engineered for JXi 400 pool and spa heaters. This part performs a central function in the heating process by conducting heat from the burner to the water, helping preserve steady water temperature and energy efficiency. Built from durable, corrosion resistant materials, this heat exchanger is designed to withstand the thermal and chemical demands of routine
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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]
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C.L.
Phoenix, US
★★★★★ 3
Runs small
Size: X-Large, Color: Navy
Runs small and is short. Nice dark navy color. I ordered a size up and it is still small.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 26, 2026
D
Verified Purchase
Dee
Belleville, US
★★★★★ 5
Great tee
Size: X-Large, Color: Medium Grey Heather
It’s a nice cotton material…not thin, just perfect. After washing, it also kept its shape.
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Reviewed in the United States on February 18, 2026
D
Verified Purchase
Dan
Waukegan, US
★★★★★ 5
Wonderful t-shirts
Size: X-Large, Color: Medium Grey Heather
These t-shirts are well made and have a nice thick feel to them. The sizing is spot on.
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Reviewed in the United States on April 17, 2026
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Verified Purchase
Purple 7
Charlottesville, US
★★★★★ 5
Unpaid and honest review
Size: Small, Color: Navy
Nice fit ,lightweight ,good quality and very very affordable ,comfy.Recommended
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Reviewed in the United States on June 10, 2026
D
Verified Purchase
Dave F
West Palm Beach, US
★★★★★ 4
Runs small
Size: XX-Large, Color: Navy
Definitely go a size up. These run a whole size smaller than designated. Material is also heavier than a regular t-shirt. Quality seems okay
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Reviewed in the United States on May 17, 2026

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