SKU: 74154636844

JANDY HEAT EXCHANGER & HEADER ASSY 400K - R0805805

$647.27 $719.19
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  • USA
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

JANDY HEAT EXCHANGER & HEADER ASSY 400K - R0805805The Jandy Heat Exchanger & Header Assembly 400K (R0805805) delivers professional grade performance for pool contractors servicing JXi 400 heater systems. This ASME compliant combustion chamber assembly provides reliable 399,000 BTU HR output with 84% thermal efficiency, making it the trusted choice for commercial pool heating installations and service calls. Commercial Contractor Benefits Engineered for demanding commercial applications, this assembly

The Jandy Heat Exchanger & Header Assembly 400K (R0805805) delivers professional-grade performance for pool contractors servicing JXi™ 400 heater systems. This ASME-compliant combustion chamber assembly provides reliable 399,000 BTU/HR output with 84% thermal efficiency, making it the trusted choice for commercial pool heating installations and service calls.

Commercial Contractor Benefits

Engineered for demanding commercial applications, this assembly features copper/cupronickel heat exchanger tubes and polymer/bronze headers that resist corrosion and extend service life. The self-compensating venturi combustion system operates efficiently at high altitudes up to 4,500 ft, reducing callbacks and ensuring consistent performance across diverse installation sites. Compatible with both natural gas and LP systems, providing installation flexibility for contractors.

Why Pool Contractors Choose MT Pools

MT Pools understands the urgency of heater repairs and replacements. Our superior customer service ensures you get the right parts quickly, keeping your commercial projects on schedule. With wholesale B2B pricing and expert technical support, we're your trusted partner for high-value contractor orders averaging $7,000-$10,000.

Frequently Asked Questions

Is this assembly compatible with all JXi 400 heater models?

Yes, the R0805805 is designed specifically for Model 400 JXi™ heaters including JXi400N, JXi400P, JXi400NN, and JXi400PN variants by Zodiac Pool Systems.

What electrical requirements are needed for installation?

The assembly requires certified electrician installation with 120 VAC at <5 amps or 240 VAC at <2.5 amps. Factory-wired for 240V but convertible to 120V via voltage selector board.

What warranty coverage does this assembly include?

Includes 5-year warranty on heat exchangers with VersaFlo™ Integrated Bypass and 90-day warranty on replacement parts, valid only for licensed contractor installations.

Can water connections be configured for different installations?

Yes, water connections ship on the right side by default but can be rotated to the left side for flexible installation configurations.

Order Your Replacement Assembly Today

Don't let heater downtime impact your commercial projects. Order the Jandy R0805805 heat exchanger assembly from MT Pools and experience the superior customer service that keeps contractors coming back. Our technical experts are ready to support your installation success.

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: 74154636844

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4.5 ★★★★★
Based on 5 reviews
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Verified Purchase
nancyt
Charlottesville, US
★★★★★ 5
Works very well, and good-looking
Color: Beige, Size: 6-panel
This is attractive and sturdy, and tall enough that my cat cannot get over it as long as there is no furniture nearby that she can launch herself from, which is why I got it. The bamboo is tightly woven, she can't get her nails into it. I installed some brass drawer pulls in strategic places so I can grab them to move the folding screens in different positions, depending on where I don't want my cat to go. So it gets moved around, dragged around, constantly and still looks in mint condition after almost 3 years of constant use. I highly recommend. The lightest version is very attractive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 18, 2025
S
Verified Purchase
susan m whitfield
Waukegan, US
★★★★★ 4
Y'all are picky with word selection
Color: Beige, Size: 4-panel
A couple of minor flaws but it's beautiful I love it and it serves its purpose for sure
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
J
Verified Purchase
Junlei Yang
Fort Morgan, US
★★★★★ 5
Perfect for addingprivacy
Color: Beige, Size: 4-panel, Color: Beige, Size: 4-panel
Excellent room divider! Easy to set up, good quality, and perfect for adding privacy near the front door. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
T
Verified Purchase
Tony Ward Arts
Houston, US
★★★★★ 5
Stands well on high-pile carpet
Color: Beige, Size: 5-panel
Great product! Stands up sturdy on my high-pile carpet. Not too heavy, not too light. It comes pre-assembled in a MASSIVE box, so just be aware. The condition was great, minus one spot that looks like the fabric weave was stained. Not noticeable. Kindof a pain to adjust, but that's not necessarily the fault of the product. Just a finnicky thing to get "just right."
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
W
Verified Purchase
WW
Grantham, US
★★★★★ 5
Very useful
Color: Black
I’ve been using this room divider to separate my space from my daughter’s, and it has worked out really well. It provides just the right amount of privacy while still keeping the room feeling open and comfortable. The design is simple yet stylish, so it blends nicely with our decor. It’s also lightweight and easy to move when needed, which is a big plus. The material feels durable and well-made, not flimsy at all. Overall, it’s a practical and attractive solution for shared spaces, and I’m very happy with this purchase. I would definitely recommend it to others.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026

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