Jandy JXi 400 Heater Heat Exchanger Assembly | R0589405

Jandy JXi 400 Heater Heat Exchanger Assembly | R0589405

Marsoni

M251S

$650.00

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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These are advertised as puppy but I wish there were still different sizes for the different sizes of puppies. It seems extra small dogs are left out of alot of things. My older larger dog seems to like these but shes only touched it once because these are also quite hard. And my tiny puppy wants to chew these but theyre so big she cant even get ahold of it. I wish there were more options for very small dogs/puppies. Because they seemed to really like these and wanted them but just cant chew them...

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Reviewed in the United States on January 4, 2026

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J-WO

New York, US

★★★★★ 5

Durable!

Size: 5 Inch, Color: Raccoon

Love these toys/brand! Our Beagle had to have stomach surgery from ratting something he shouldn’t have. Since then we hit this brand of toy because he really can’t destroy it! Great quality and highly recommend for dogs that like to chew!

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Reviewed in the United States on June 8, 2026

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peggy541

West Palm Beach, US

★★★★★ 1

Half gone in the first 45 minutes...

Size: 6 Inch, Color: Bone

our medium sized dog is an aggressive chewer but we expected mire than 3/4 of an hour before the bone's demise. Half gone quickly, heavy stitching included, so threw away the second half for fear of a blockage. Not safe, not durable, disappointing. Sorry, cannot recommend this one.

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Reviewed in the United States on May 19, 2026

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Elizabeth

Waukegan, US

★★★★★ 5

Puppy loves it!

Size: 6 Inch, Color: Bone

I have a very energetic lab puppy - this chew kept her still for longer than any other toy I’ve tried (besides bully sticks and peanut butter). Highly recommend!

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Reviewed in the United States on June 11, 2026