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"s/s housing with 2" slip tailpieces, dual thermowell grooves w/cover, 1/8"npt pressure switch...

Marquis SpasHeater retro-fit kit to replace old 90&deg curved flo-thru heater. Rated at 4.3kW/230v. This kit ships with all parts shown. Pressure switch not included

HerculesStainless steel replacement heater assembly replaces the pre-95 XT 2" x 18" manifold. Includes 5.5 kW/230v element. Order tailpieces separately. Pressure switch not includedNote: This heater assembly has a welded heating element. If the heating element fails, please replace the entire heater assembly.

Heater, FloThru, HQ CS-700D, 10" x 2", 115v, 1.0kW