This is not an assembled or aftermarket Heater Assembly. It is a brand new OEM Balboa heater with a 1 year warranty. The heater you order needs to say Balboa or it is not the genuine article.
Balboa Revolution BP1500 M7 15" 4.0 kW Flo-Thru Spa Heater Assembly With (2) Sensors
Used in BP1500 Revolution Systems - 56109-01 and X300791
This heater manifold carries a (1) year manufacturer's warranty.
The manufacturer's warranty does not cover GFCI trips or leaks due to improperly maintained water chemistry.