SKU: 43161376413

JANDY JXi ASME CUNI HEATER 400K BTU NAT - JXI400NS

Sale price$1814.63 Regular price$2016.26
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

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Description

JANDY JXi ASME CUNI HEATER 400K BTU NAT - JXI400NSThe Jandy JXI400NS 400K BTU ASME Commercial Pool Heater delivers unmatched performance and efficiency for demanding commercial pool installations. This ASME compliant heater features Low NOx technology, 84% thermal efficiency, and an ultra compact design that fits on a 2' x 2' pad while delivering professional grade heating power. Commercial Application Benefits Engineered specifically for commercial applications, this heater reduces installation time

The Jandy JXI400NS 400K BTU ASME Commercial Pool Heater delivers unmatched performance and efficiency for demanding commercial pool installations. This ASME-compliant heater features Low-NOx technology, 84% thermal efficiency, and an ultra-compact design that fits on a 2' x 2' pad while delivering professional-grade heating power.

Commercial Application Benefits

Engineered specifically for commercial applications, this heater reduces installation time with its 38% lighter weight and 28% smaller footprint compared to competitors. The cupronickel heat exchanger and bronze headers provide superior corrosion resistance, minimizing maintenance calls and protecting your service reputation. Compatible with AquaLink automation systems for remote control via iAquaLink app.

Why Pool Contractors Choose MT Pools

With our superior customer service and daily recurring customer support, you get more than just equipment – you get a trusted B2B partner. Our wholesale pricing structure supports your profit margins while our reliable inventory ensures your commercial projects stay on schedule with fast shipping nationwide.

Frequently Asked Questions

Can the JXI400NS replace existing Mastertemp and Max-E Therm heaters?

Yes, the JXI400NS offers flexible installation and can replace Mastertemp® and Max-E Therm® heaters without requiring plumbing changes, making retrofits seamless for contractors.

What are the efficiency ratings for this commercial heater?

The JXI400NS delivers 84% thermal efficiency with Low-NOx technology, surpassing strict DOE Energy Efficiency requirements for commercial pool applications.

What installation requirements does this ASME heater have?

Professional installation by qualified personnel per local and national codes is required. The unit features reversible plumbing connections and can be installed outdoors or indoors with proper venting.

Does MT Pools offer technical support for commercial installations?

Yes, MT Pools provides superior customer service with expert technical guidance and support for pool contractors throughout the installation and service process.

Order Today

Join thousands of pool contractors who rely on MT Pools for their commercial heating equipment needs. Our team is ready to support your success with expert technical guidance, competitive wholesale pricing, and fast shipping.

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: 43161376413

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Jeff in Iowa
Natrona Heights, US
★★★★★ 5
Fixed noisy and leaking power steering pump
My daughters 2008 Honda Accord 2.4L 4 cylinder that had a very noisy power steering pump which was also starting to leak. I was about to buy a new pump when I found out it might just be leaking from the hoses to the pump. I bought these O rings for the hose connections at the power steering pump, and spent 15 minutes replacing them. Pump is quiet again! The suction hose can develop a leak, letting air get into the pump which creates the loud noises. This fix is all I needed, and was much cheaper and faster than replacing the power steering pump.
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Reviewed in the United States on March 10, 2026
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Josh
Grantham, US
★★★★★ 5
Perfect!
Fits exactly on my 2000 civic and I have not had any issues!
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Reviewed in the United States on February 18, 2026
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Amazon Customer
Boise, US
★★★★★ 5
Good brand
They work good so far.
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Reviewed in the United States on March 4, 2026
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Amazon Customer
Fort Morgan, US
★★★★★ 5
Perfect fit for 2004 Honda Element, Fixed leak!!
Perfect fit for 2004 Honda Element Dx. Fixed my power steering leak and was super easy to install. Took 5-10mins at most. Would definitely buy again, 5/5 stars!!!
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Reviewed in the United States on December 26, 2025
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Amazon Customer
San Leandro, US
★★★★★ 5
Good fit
Both filters fit well on my 2019 Honda CRV. I was able to replace without struggle. Did it on my own first time.
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Reviewed in the United States on May 5, 2026

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