Raypak Avia 404A Low NOx Pool & Spa Heater (018033) — Wi-Fi Enabled

Raypak Avia 404A Low NOx Pool & Spa Heater (018033) — Wi-Fi Enabled

Marsoni

M251S

$2249.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Raypak Avia 404A Low NOx Pool & Spa Heater (018033) — Wi-Fi EnabledThe Raypak Avia 404A Low Nox Pool and Spa Heater (SKU 018033) delivers robust, environmentally responsible heating with a 399,000 BTU capacity for fast and thorough water temperature control. Equipped with Low NOx emissions technology, it meets demanding air quality standards and is well suited for regions with strict environmental requirements. The onboard Wi Fi enabled Raymote platform gives you full remote access and the ability to set heating

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This works really well! I used it several times and really saw a difference. Unfortunately I had a root canal done and the following day I decided to whiten and I thought I was going to die! I didn’t know my front tooth was going to be that sensitive from the tooth canal. That was my fault and only telling this story as a warning! Do not use this after dental work unless your dentist says ok! Otherwise it works amazingly!

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Reviewed in the United States on May 2, 2026

Verified Purchase

Zero

Lake Worth, US

★★★★★ 4

Easy to use

Size: 4 Count (Pack of 1)

Continued use is needed for best results

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Reviewed in the United States on May 14, 2026

Verified Purchase

Nicole

Boise, US

★★★★★ 5

No sensitivity issues and works!

Size: 4 Count (Pack of 2)

I have what I would consider sensitive teeth and this doesn’t bother them one bit. I have used nightly for about 5 nights and can see a difference in color but again, no pain or sensitivity problems! I would recommend to anyone who asks what product to get for whitening teeth.

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Reviewed in the United States on February 25, 2026