Coleman 4kW 240V 15 Inch Heater C2400-0739 uses External Thermowell

DISCONTINUED -  see universal replacement heater C2400-5000-P

15 inch long Coleman 240 volt spa heater C2400-0739 rated at 4.0kW.  This heater is the type that uses an external pressure switch mounted to PVC part next to heater, not mounted to heater.

This heater has a built-in 4kW heater element and 2 inch plumbing connections on both ends.

Heater Assembly,Coleman,Flo-Thru 4kW heater at 240 volts with 2" x 15"L size. With Pressure Switch tap/External ThermoWell tailpiece fitting/ 2" heater tailpieces.

Pressure Switch Not Included.  Can use Model 3903 pressure switch if needed.

The heater itself does not have a pressure switch tap as it is external to the heater manifold.  This item is not included with the heater, and in fact has been discontinued and is no longer available - see below for other option.

Actual heater assembly is 2 1/4" flow through heater for 2 inch plumbing.

HQ C2400-0739

This heater type used in Thermo Spas, Coleman Spas, Maax Spas and by other brand hot tub manufacturers.

No Pressure Switch Tap is included, Suggested to Purchase Tail Piece P/N RPL2-20-225: 2"MBT x 2"S,x 1/8"NPT to mount the pressure switch to if not already in system.

Since this item RPL2-20-225 is discontinued, unavailable or can be hard to find - you can also use a combination of 413-5010 and 417-5060 if you have enough room for these 2 slightly longer parts. (threaded piece for pressure switch and separate tailpiece)