


Heater, FloThru, CalSpa XL Repl, 15"x2", 230v, 4.0kW, w/Box, Gen
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Heater, FloThru, CalSpa XL Repl, 15"x2", 230v, 4.0kW, w/Box, GenHeater, FloThru, CalSpa XL Repl, 15"x2", 230v, 4. 0kW, w Box, Gen Aftermarket 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" Aluminium housing with 2" slip tailpieces, dual thermowell grooves w cover, 1 8"npt pressure switch tap, and metal box. *Pressure switch not included Product Specifications: Housing
Quick Dispatch:
Your Heater, FloThru, CalSpa XL Repl, 15"x2", 230v, 4.0kW, w/Box, Gen orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your Heater, FloThru, CalSpa XL Repl, 15"x2", 230v, 4.0kW, w/Box, Gen ships.
Need Help?
Questions about Heater, FloThru, CalSpa XL Repl, 15"x2", 230v, 4.0kW, w/Box, Gen, sizing, or delivery? We're just an email away.
Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Heater, FloThru, CalSpa XL Repl, 15"x2", 230v, 4.0kW, w/Box, Gen in your area.
Get Shipping Estimates
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
You may also like
4.5 ★★★★★
Based on 206 reviews
Sort
Product Reviews
★★★★★ 5
Don’t pay the labor fee. Do it yourself
Much cheaper than having the dealer install it or even from the auto parts store. Easy to install, took less than 5 minutes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025
★★★★★ 5
yes
good price...second purchase
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 12, 2025
★★★★★ 4
This item was out of stock at the auto stores so this was easy
Great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 14, 2021
★★★★★ 5
Perfect fit
2015 Honda Fit, does what it’s supposed to. Super easy install. Don’t pay someone $30 to do it at your next oil change. Easy DIY
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2023
★★★★★ 5
good filter
its a good filter. cheaper than manufacturer one in price but it does the same job. recommend change the filter with every oil change for best vehicle performance.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2023