Heaters
Shop replacement heaters for pools, spas, hot tubs, and bath systems. Find gas, electric, and spa heater options designed to maintain comfortable water temperatures and dependable heating performance.
![Hydro-Quip Heat Master In-Line Bath Heater [2.0kW] [1"] (PH203-20UP)](http://www.bathandspaparts.com/cdn/shop/files/46-355-1015_XL_large.jpg?v=1715657633)
![Hydro-Quip In-Line Bath Pressure Heater [1.5" x 7"] [115v] [650W] (PH101-65UP)](http://www.bathandspaparts.com/cdn/shop/files/46-355-1064_XL_large.jpg?v=1715657633)
![Hydro-Quip Pure Heat In-Line Bath Heater [1.5kW] (PH101-15UP-S)](http://www.bathandspaparts.com/cdn/shop/files/46-355-1050_XL_large.jpg?v=1715657633)
Hydro-Quip Pure Heat In-Line Bath Heater [1.5kW] (PH101-15UP-S)
$224.99 $172.99
![Hydro-Quip In-Line Bath Vacuum Heater [1.5" x 7"] [115v] [1.0kW] (PH101-10UV)](http://www.bathandspaparts.com/cdn/shop/files/46-355-1066_XL_large.jpg?v=1715657633)
![Hydro-Quip 6.0kW Baptismal Immersion Heater [230v] w/ Float (BIS-60-240-GF)](http://www.bathandspaparts.com/cdn/shop/files/46-355-1810_XL_large.jpg?v=1715657585)
![Hydro-Quip Baptismal 6.0kW Immersion Heater [230v] [Bare] (BIS-60-240-B)](http://www.bathandspaparts.com/cdn/shop/files/46-355-1806_XL_large.jpg?v=1715657581)
![Hydro-Quip Hercules Gen 2 FloThru Heater [18"x2"] [230v] [5.5kW] (26-0155-7S-K)](http://www.bathandspaparts.com/cdn/shop/files/46-355-3220_XL_large.jpg?v=1715657572)
![Gecko Heat.Wav 4kW FloThru Heater [15" x 2"] [230v] [IN.Yj [w/Sensor] (0613-421009)](http://www.bathandspaparts.com/cdn/shop/files/46-402-2224_XL_large.jpg?v=1715147549)
![Gecko OEM FloThru S-Class 2.0kW Heater [15"x2"] [230v] [w/PS] (9920-100340)](http://www.bathandspaparts.com/cdn/shop/files/46-402-2000_XL_large.jpg?v=1715147550)
![Gecko OEM FloThru M-Class 5.5kW Heater [15"x2"] [230v] [w/PS] (9920-100347)](http://www.bathandspaparts.com/cdn/shop/files/46-402-2222_XL_large.jpg?v=1715147543)
![Dimension One 4.0kW D-1 FloThru Heater [15" x 2"] [230v] (1563-08)](http://www.bathandspaparts.com/cdn/shop/files/46-456-1525_XL_large.jpg?v=1715147499)
![Coates ST Series 5.5kW Single Phase Electric Heater [240v] (12406ST)](http://www.bathandspaparts.com/cdn/shop/files/12406ST_XL_large.jpg?v=1715036752)
Coates ST Series 5.5kW Single Phase Electric Heater [240v] (12406ST)
$1,129.99 $924.99
![Balboa 4.0kW LowFlow Trombone Heater [26"x6"] [230v] (58375T)](http://www.bathandspaparts.com/cdn/shop/files/46-138-1086_XL_large.jpg?v=1713397789)
Balboa 4.0kW LowFlow Trombone Heater [26"x6"] [230v] (58375T)
$344.99 $264.99
![Balboa 5.5kW Plastic Sundance Spas LowFlow Heater [230v] (58336)](http://www.bathandspaparts.com/cdn/shop/files/46-138-1090_XL_large.jpg?v=1713397789)
Balboa 5.5kW Plastic Sundance Spas LowFlow Heater [230v] (58336)
$287.99 $220.99
![Balboa BP100 Remote FloThru Heater [4.0kw] (G4311) (G7413)](http://www.bathandspaparts.com/cdn/shop/files/46-138-1312_XL_large.jpg?v=1713397742)
Balboa BP100 Remote FloThru Heater [4.0kw] (G4311) (G7413)
$207.99 $159.99
![Balboa 15" BP Titanium FloThru Heater [4.0kW] [230v] [w/PnC] [(G7432)](http://www.bathandspaparts.com/cdn/shop/files/46-138-1330_XL_large.jpg?v=1713397742)
![Balboa 15" FloThru Heater Assembly [4kw] [2X2] (58111)](http://www.bathandspaparts.com/cdn/shop/files/58111_XL_large.jpg?v=1713397738)
Balboa 15" FloThru Heater Assembly [4kw] [2X2] (58111)
$202.99 $155.99
![Hydro-Quip 5.5kW Rite-Fit Vertical Lo-Flo Heater [240V] (27-V310-7T-K)](http://www.bathandspaparts.com/cdn/shop/files/27-V310-5T-K_large.jpg?v=1703609906)
![Hydro-Quip 4.0kW Rite-Fit Vertical Lo-Flo Heater [240V] (27-V310-5T-K)](http://www.bathandspaparts.com/cdn/shop/products/27-V310-5T-K_large.jpeg?v=1560531522)
![Therm Leisure Bay 4.0kW Flo Thru Heater [17-1/2" x 3"] [240v] [w/PS Tap] (26-1001-5S-K)](http://www.bathandspaparts.com/cdn/shop/products/26-1001-5S-K_large.jpeg?v=1560355298)
![Hydro-Quip 1.2/4.0kW Flo Thru Heater [13" x 2"] [115/230v] (26-0070B-1-K)](http://www.bathandspaparts.com/cdn/shop/files/BSPO_0251_large.jpg?v=1778992061)
![Therm Universal 4.0kW Flo Thru Heater [15" x 2"] [240V] [ACC] [Generic] (B24045T5T)](http://www.bathandspaparts.com/cdn/shop/files/BSPO_0519_large.jpg?v=1778992161)
![Hydro-Quip 6.0kW Watkins LowFlow Heater [Laing Tri-Bend] [230v] (73790)](http://www.bathandspaparts.com/cdn/shop/files/BSPO_1262_large.jpg?v=1778992512)
![Therm 5.5kW U-Shape RHS/Heatmax Heater Assembly [240v] (A2550-2601)](http://www.bathandspaparts.com/cdn/shop/products/46-355-1560_xl_large.jpg?v=1486197670)
![Therm 5.5kW Universal Low Flow Heater [3"x11"] [240V] [No Tailpieces/PS] (E2550-5002)](http://www.bathandspaparts.com/cdn/shop/products/46-555-2305_xl_large.jpg?v=1486197667)
![Therm 5.5kW Low Flow Heater [Laing Tri-Bend 2000] [15" x 2-1/4", 3/4" Barb] (C2550-3661-TI2)](http://www.bathandspaparts.com/cdn/shop/products/C2550-3661-TI2_large.jpg?v=1486197643)
![Therm 5.5kW Low Flow Heater [9" x 3"] [240V] [Leisure Bay] [Generic] (E2550-0202ET)](http://www.bathandspaparts.com/cdn/shop/products/E2550-0202ET_large.jpg?v=1486197640)
![Therm 5.5kW Low Flow Heater [6-5/8" x 3"] [240V] [w/Box] [Clearwater] (E2550-0028CP)](http://www.bathandspaparts.com/cdn/shop/products/E2550-0028CP_large.jpg?v=1486197639)
![Therm 5.5kW Low Flow Heater [3" x 9"] [240V] [Hurricane] (E2550-020X-1)](http://www.bathandspaparts.com/cdn/shop/products/46-371-1270_xl_large.jpg?v=1486197628)
![Therm 5.5kW Low Flow Heater [3" x 6-5/8"] [240V] [90 deg W/PS Tap] [No Cords] (E2550-0028)](http://www.bathandspaparts.com/cdn/shop/products/46-371-1285_xl_large.jpg?v=1486197626)