


Heater, FloThru, CalSpa Repl, 15"x2", 230v, 5.5kW, w/ Box, Gen
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Heater, FloThru, CalSpa Repl, 15"x2", 230v, 5.5kW, w/ Box, GenAftermarket 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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Reviewed in the United States on February 13, 2026
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★★★★★ 4
Soft ❤️
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It's super soft but not as large as I like. I guess I didn't read the size before ordering. But it's a keeper. ❤️
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