SKU: 74154636844

JANDY HEAT EXCHANGER & HEADER ASSY 400K - R0805805

$647.27 $719.19
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Ships within 48 hours · Estimated delivery Aug 24 - Aug 29

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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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4.4 ★★★★★
Based on 23 reviews
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K
Verified Purchase
Kimberly Watson
Charlottesville, US
★★★★★ 5
Great purchase
Color: Storage Cover Black, Size: Rechargeable
I've had my Circle Joy Frother since May 11th, and I've have used it every day. It's the best frother I've ever ordered or owned. It's powerful, works great and it's rechargeable, no batteries to buy for this one. I'll buy this one again if or when it stops working. I'm very satisfied.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
M
Verified Purchase
Momma Cat
Alexandria, US
★★★★★ 5
Game Changer for Coffee Lovers
Color: Storage Cover Black, Size: Rechargeable
I purchased the Circle Joy Rechargeable frother mostly because of the price. The frothy-whipped cream is a treat on the weekends, and the last hand frother I purchased zapped out. WoW - this one is amazing! The last one I had was battery operated, and wasn't as fast as this one. I now use it everyday because it works so quickly. It comes with a "lid" for the blender part, so I can toss in my briefcase. Love that recharges quickly so its ready when I am. Great price, easy to use, looks sleek, and tiny enough to take with you. LOVE, FiVE Stars
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
J
Verified Purchase
Janae Woods
San Leandro, US
★★★★★ 4
Great for short term
Color: Storage Cover Black, Size: Rechargeable
Works great when it works.... But I've bought three this year and two of them just unexpectedly died with no logical reason. Giving up and trying a new brand for my protein coffee drinks. *Edit....after original review the seller offered a refund and apologized for the issues I had. Bumping up my rating for proactive customer service and trying to make things right.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
L
Verified Purchase
L
San Leandro, US
★★★★★ 5
Great buy!
Color: Storage Cover Black, Size: Rechargeable
Great product. I'm glad I bought this to replace my old, cheap one that I got from Ikea. I like that it has double whisk as it does froth my liquids really well. I like the speed of it and it's easy to use and wash. The battery life is pretty long as well. I haven't charged it since I got it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
B
Verified Purchase
Big Daddy
Pawtucket, US
★★★★★ 5
Pretty darn good frother...
Color: Storage Cover Black, Size: Rechargeable
This is a pretty darn good frother/whisk, which we use primarily for mixing Crystal Light and LMNT drinks. It holds a charge for a long time and it is easy to recharge with the USB-C port and cable. My only complaint is that you must hold the power button continuously while operating it which is challenging to do using tall cups. It would be much better if is was a two stage on-off switch and had a longer wand, which isn't as long as it could be. But the unit is lightweight, easy to use and very versatile. Overall, I would buy it again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026

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