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Heater, FloThru, CalSpa Repl, 15
Heater, FloThru, CalSpa Repl, 15
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Heater, FloThru, CalSpa Repl, 15"x2", 230v, 5.5kW, w/Box, Generic

Marsoni M251S
Sale price$135.40
Pay 4 payments of $33.85 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Heater, FloThru, CalSpa Repl, 15"x2", 230v, 5.5kW, w/Box, GenericAftermarket Replacement for Cal Spa XL Exchanger This heater assembly is not an exchanger but an in line flow thru replacement. This heater assembly is designed as a drop in replacement. 2" x 15"s s housing with 2" slip tailpieces, dual thermowell grooves w cover, 1 8"npt pressure switch tap, and metal box. Pressure switch not included Note: The two thin wires with the male and female terminal ends are usually not used. It is okay to connect them
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.6 ★★★★★
Based on 488 reviews
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Product Reviews
K
Verified Purchase
K. C.
Belleville, US
★★★★★ 3
Bathroom
Color: Gravel Black
It's small and hard to keep clean. Gets easily stained it's pretty. Would recommend for a bathroom not a kitchen.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 8, 2025
T
Verified Purchase
Tracy Kroken
Massapequa, US
★★★★★ 4
It works as it should.
Color: Gravel Black
It's what I was looking for. I cut the small foam stickers to keep it from moving around on counter into pieces & put the on the bottom works well. It did chance color? like white stained?
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
D
Verified Purchase
d
Grantham, US
★★★★★ 5
Fits and works!
Color: Gravel White
Like it. Fits on edge my sink...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
S
Verified Purchase
stephen schwindt
Port Orchard, US
★★★★★ 5
Perfection!
Color: Gravel Black
It works well. Is solidly constructed. Reasonably priced. Beautiful to behold.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 3, 2025
K
Verified Purchase
Kate
Lexington, US
★★★★★ 1
Soap stains wont wash off
Color: Gravel Black
Like the looks of it but gets easily stained with the soap and wont come off.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2025

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