This is an Aftermarket Replacement Heater for the Cal Spa XL Exchanger.
This heater assembly is not an exchanger but an in-line flow thru replacement with a replaceable heating element found in "Related Items" tab above
The original OEM heater had the heating element wrapped around the outside of the heater housing.
4.0 KW 230 Volts
2" x 15" Stainless Steel housing with 2" slip tailpieces & o-rings
1/8" pressure switch tap
Auto Reset Hi-Limit.
Pressure switch not included. (See "Related Items" tab above)
Identical to: F2400-0011, / B24040XL