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.
![Therm 4.5kW Flo Thru Heater [15" x 2"] [240V] [Vita Spas] [No Pressure Tap] (C2450-0024ET)](http://www.bathandspaparts.com/cdn/shop/files/BSPO_0248_large.jpg?v=1778992058)
![Therm 4.0kW T-Style Flo Thru Heater [18.75" x 2.25"] [240V] (16-08124)](http://www.bathandspaparts.com/cdn/shop/products/46-371-1260_xl_large.jpg?v=1486197420)
![Therm 4.0kW Low Flow Versi-Heat Heater [240V] [Hydro Quip] (26-08159)](http://www.bathandspaparts.com/cdn/shop/products/46-355-1505_xl_large.jpg?v=1486197413)
![Therm 4.0kW Low Flow Trombone Heater [240V] [Caldera] [Laing 6595 & 7340] (C3473-1)](http://www.bathandspaparts.com/cdn/shop/products/46-238-1064_xl_large.jpg?v=1486197411)
![Therm 4.0kW Low Flow Heater [8-7/8" x 3"] [240V] [Clearwater] [Generic] (E2400-0221)](http://www.bathandspaparts.com/cdn/shop/products/E2400-0221_large.jpg?v=1486197395)
![Therm 4.0kW Low Flow Heater [3" x 6.469"] [240V] [No Box] [Gatsby] (26-00157)](http://www.bathandspaparts.com/cdn/shop/products/46-371-1276_xl_large.jpg?v=1486197388)
![Therm 4.0kW Low Flow Heater [3" x 12"] [240V] [Caldera] [Generic] (E2400-0201ET)](http://www.bathandspaparts.com/cdn/shop/products/E2400-0201ET_large.jpg?v=1486197385)
![Therm 4.0kW Low Flow Heater [3" x 10", 1" B] [240V] [Savannah Spas] (26-00257)](http://www.bathandspaparts.com/cdn/shop/products/46-371-1300_xl_large.jpg?v=1486197383)
![Therm 4.0kw Low Flow Heater [240V] [Gatsby] (46-555-2430)](http://www.bathandspaparts.com/cdn/shop/products/46-555-2430_xl_large.jpg?v=1486197371)
![Therm 4.0kW Low Flow Heater [240V] [Dynasty Spas] (E2400-0012)](http://www.bathandspaparts.com/cdn/shop/products/46-238-1556_xl_large.jpg?v=1486197369)
![Therm 4.0kw Low Flow Heater [240V] [Blue Ridge/Gatsby] (46-555-2465)](http://www.bathandspaparts.com/cdn/shop/products/46-555-2465_xl_large.jpg?v=1486197368)
![Therm 1.0kW Flo Thru Heater [8-1/2" x 1-1/2"] [120V] [Balboa] (C1100-0210-1)](http://www.bathandspaparts.com/cdn/shop/products/C1100-0210-1_large.jpg?v=1486197194)
![Therm 6kW Screw Plug Heater [12" x 1" MPT] [240V] [H/L, T/S] [w/Box] (6EHL3000)](http://www.bathandspaparts.com/cdn/shop/files/BSPO_0895_large.jpg?v=1778992335)
![Spa Components 5.5kW Flo Thru Heater [19" x 2"] [NuWave] (B24055C) (B24055C)](http://www.bathandspaparts.com/cdn/shop/files/46-371-1230_1_large.jpg?v=1783488797)
![Spa Components 5.5kW Flo Thru Heater [2" x 15.5"] [Cal Spa] [Heat114] (B24055G)](http://www.bathandspaparts.com/cdn/shop/products/46-371-1215_xl_large.jpg?v=1486196404)
![Spa Components 4.0kW Flo Thru Heater [15" x 2"] [PS/SI Brett/Caldera (B24040S)](http://www.bathandspaparts.com/cdn/shop/products/46-371-1210_xl_large.jpg?v=1706890130)
![RayPak 11kW Spa Heater [Replacement for ELS 1102-2] [230v] (017122)](http://www.bathandspaparts.com/cdn/shop/products/46-197-1050_xl_large.jpg?v=1486196259)
![Marquis Spas 4.0kW Flo-Thru Heater Kit [12" x 2"] (740-0514)](http://www.bathandspaparts.com/cdn/shop/files/BSPO_0495_large.jpg?v=1778992148)
Marquis Spas 4.0kW Flo-Thru Heater Kit [12" x 2"] (740-0514)
$311.99 $239.99
![Hydro-Quip 5.5kW L-Shaped PS Electronic Heater [2"x2"] [240V] [Short Cord] [Clamps] (48-PSL55-S)](http://www.bathandspaparts.com/cdn/shop/products/46-355-1459_xl_large.jpg?v=1486188077)
![Hydro-Quip PS 4.0kW Electronic Heater [2" x 15"] [240V] [Short Cord] [Clamps] (48-PS45-S)](http://www.bathandspaparts.com/cdn/shop/products/46-355-1474_xl_large.jpg?v=1486188074)
![Hydro-Quip HQ 8000 5.5kW Outdoor Flo Thru Heater [19-1/4" x 2" Union] (26-0053)](http://www.bathandspaparts.com/cdn/shop/files/BSPO_0249_large.jpg?v=1778992058)
![Hydro-Quip 5.5kW Flo Thru Heater Assembly [13" x 2.25"] [w/VH Studs] (PT48-260050-13A)](http://www.bathandspaparts.com/cdn/shop/products/46-355-1452_XL_large.jpg?v=1486187433)
![Hydro-Quip 4.0kW PS Air Heater [15" x 2"] [240V] [Short Cord] [Clamps] (48-PS40-SA)](http://www.bathandspaparts.com/cdn/shop/products/46-355-1435_xl_large.jpg?v=1486187386)
![Hydro-Quip 2.0kW In-Line Bath Heater [PH203-20UV] [230V] [1-1/2" Slip] [Nema] (PH203-20UV)](http://www.bathandspaparts.com/cdn/shop/products/46-355-1059_XL_large.jpg?v=1486187366)
![Hydro-Quip 1.5kW In-Line Bath Heater [PH301-15UV] [115V] [3ft Cord/Plug] [Vacuum] (PH301-15UV)](http://www.bathandspaparts.com/cdn/shop/products/46-355-1055_XL_large.jpg?v=1486187340)
![Hydro-Quip 1.0kW In-Line Bath Heater [PH101-10UP] [115V] [3ft Cord/Plug] (PH101-10UP)](http://www.bathandspaparts.com/cdn/shop/products/46-355-1045_XL_large.jpg?v=1486187333)
![Hayward Universal [Pre 2008] Wire Harness (FDXLWHA0001)](http://www.bathandspaparts.com/cdn/shop/products/47-150-1683_xl_large.jpg?v=1486187237)
![Gecko IN.Therm IN.XM Flo-Thru 4.0kW Heater [14-1/2" x 2"] [230V] (0603-409001)](http://www.bathandspaparts.com/cdn/shop/files/BSPO_0047_large.jpg?v=1778991955)
![Coates 6-ILS 5.75kW Complete Heater [15" x 2"] [230v] [w/Sensors] [PS] (6ILS)](http://www.bathandspaparts.com/cdn/shop/products/46-225-1010_xl_large.jpg?v=1486184284)
![Balboa 15" 4.0 kW Spa Heater Assembly [240v] [2" x 2"] (58067) (G7418)](http://www.bathandspaparts.com/cdn/shop/products/58067_lar_large.jpg?v=1518751274)
Balboa BP100 15" 5.5kW Flo-Thru Heater (26-58509)
$203.99 $176.97