Flo thru type heaters are usually horizontally mounted on bottom or top of the control box. You can usually replace just the element inside the heater tube.
Action Spas Heater Assembly for hot tub spas - $161.79
Action Spas
A2550-0012
Stainless steel replacement heater assembly. 2-3/4" x 2-3/4" welded
flange with dual 5/16" thermowells and a 1/8" npt pressure switch tap.
1-1/2"s ... More Info
Advanced Spas Heater Assembly for hot tub spas - $86.82
Advanced Spa
20-00503
Stainless steel 2" x 15" with 1/8" npt pressure switch tap
5.5kW/240v element, (2) 2" solid nut tailpiece, (2) 1 -32 x 3/8" mounting stud
Single groo... More Info
Balboa 50069 Heater Assembly for hot tub spas - $156.57
Balboa Instruments
Balboa Stainless steel replacement heater assembly
1.0kW/120v with pressure switch.
1-1/2" x 8-1/2" manifold includes tailpieces.
Part # Description
46-238-1104 Heate... More Info
Balboa 50081-50089 Heater Assembly for hot tub spas - $144.67
Balboa Instruments
Stainless steel replacement heater assembly. 2" x 15" manifold with 1/8"npt pressure switch tap
Does not include tailpieces or pressure switch
Part # Description
... More Info
Balboa 58002 M-7 Heater Assembly for hot tub spas - $144.67
Balboa Instruments
58002 M-7
Stainless steel replacement heater assembly for systems using M-7 technology.
2" x 15" with two thd taps for the M-7 sensor assembly rated at 5.5kW/240v.
Par... More Info
Balboa 58031 Heater Assembly for hot tub spas - $195.00
Balboa Instruments
Stainless steel replacement heater for M7 systems
2"x5", shipped with sensors and 2"x1/2" tailpieces installed
4.5kW, 240v.
Part # | Description
46-138-101... More Info
Balboa Standard Heater Assembly for hot tub spas - $111.00
Balboa Instruments
Balboa Instruments #B24055N
Balboa Instruments Stainless steel replacement heater assembly
5.5kW/240v with 1/8"npt pressure switch tap.
2" x 15" manifold includes... More Info
Brett Aqualine digital pack flo thru heater assembly - $98.73
Brett Aqualine
B24055S
Digital series heater assy includes a 5.5kW/240v element
2" x 15" manifold.
Shipped with 2" x 1-1/2" tailpiece.
Part # Description
46-320-1170 Heat ass... More Info
Brett Aqualine EM100, EM190 flo thru heater for hot tub spas - $123.41
Brett Aqualine EM100, EM190
B24055E, B24040E
Also used in Hydro-Quip pre-1997 packs. 15" heater manifold assembly includes 5.5kW/240v element.
Stainless steel manifold has top indent grooves a... More Info
Cal Spa XL Exchanger Replacement heater for hot tub spas - $175.00
Cal Spa XL Exchanger Replacement
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... More Info
Cal Spas 1994- Recent flo thru heater for hot tub spas - $115.00
Cal Spas 1994- Recent
B24055Q
Stainless steel replacement heater assembly. 2" x 15-1/2"
Manifold includes heater element and tailpiece assemblies.
Part # Description
46-371-1213 Heat assembly, Ca... More Info
Continental Leisure heater assembly for hot tub spas - $145.13
Continental Leisure
A2550-2103
Stainless steel replacement heater assembly. Features original
solid nuts, and 5.5kW/240v heater element. Manifold is
13" from centerline of pump union to disch... More Info
CRL 2" Replacement heater assemblies for hot tub spas - $134.41
CRL 2" Replacement hot tub spa Assembly
2-00-0004
Replacement heater assembly for EP-5 and EP-9 systems.
Made of 2"pvc and rated at 1.5/6kW, 120/240v.
Part # Description
46-454-1015 CR... More Info
CRL Replacement heater assemblies for hot tub spas - $134.41
CRL Replacement Assemblies
2-00-0001, 2-00-0003, 2-00-0004
All feature a power cord and a 5.5kW/240v element.
Part # Description
46-454-1000 Model 1, pre-1989, 1" gap between threaded heater ... More Info
CRL/Mr Spa Replacement Heater Assembly for hot tub spas - $244.22
CRL/Mr Spa Replacement Heater Assemblies
2-00-0062, 2-00-0021, 2-00-0009-UN2
Replaces Mr. Spa heaters that utilize a 13" long 1-1/4"thd
1.5kW/120v element, thermostat, and hi limit.
Part... More Info
Dakota spas heater assembly for hot tub spas - $226.80
Dakota Spas
16-08124
Stainless steel replacement heater assembly 2.25" x 18.75", 4.0kW/240v
10/3 x 48" amp plug cord
1/8" npt pressure switch tap
dual groove thermal well cove... More Info
DM Vita spa heater assembly for hot tub spas - $103.58
DM/Vita Spas
20-00467
Stainless steel replacement heater assembly. 2" x 17.75" manifold
includes 5.5kW/240v element and 2" x 1-1/2" tailpiece assemblies.
Part # Description
46... More Info
Emerald/Conway 1kw heater assembly for hot tub spas - $124.34
Emerald/Conway
20-00466
Stainless steel replacement heater assembly
1-1/2" x 12-1/4" manifold includes a 1.0kW/120v element.
Shipped with 1-1/2"QD tailpieces.
Part # Description
4... More Info
