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.
![Balboa 15" BP100 FloThru Heater Assembly [4.0kw] (G4310) (G7411)](http://www.bathandspaparts.com/cdn/shop/files/46-138-1302_XL_large.jpg?v=1713397737)
Balboa BP100 4.0kW [15" x 2"] FloThru Spa Heater (G7411)
$257.91 $197.39
![Balboa 5.5kW Slave Heater System [15" x 2"] (55986)](http://www.bathandspaparts.com/cdn/shop/files/BSPO_0769_large.jpg?v=1778992279)
Balboa 5.5kW Slave Heater System [15" x 2"] (55986)
$406.32 $383.26
![Laing 6.0kW Flo Thru Heater Assembly [240V] [Laing Tri-Bend] (C3564-1)](http://www.bathandspaparts.com/cdn/shop/products/46-555-1012_xl_large.jpg?v=1486197678)
![Therm 5.5kW Titanium Flo Thru Heater [15" x 2"] [230V] [48" Cord] (C2550-0316TI)](http://www.bathandspaparts.com/cdn/shop/products/C2550-0316TI_large.jpg?v=1486197665)
![Therm 5.5kW Low Flow Heater [3" x 6.469"] [240V] [Sunbelt Spas] (26-08147)](http://www.bathandspaparts.com/cdn/shop/products/46-371-1315_xl_large.jpg?v=1486197617)
![Therm 5.5kW Flo Thru Heater [2" x 18"] [240V] [Hercules] [Pre-5/95 XT] [Welded] (C2550-0155)](http://www.bathandspaparts.com/cdn/shop/products/46-371-1220_xl_large.jpg?v=1560265135)
![Therm 5.5kW Flo Thru Heater [2" x 13.25"] [240V] [United] [Generic] (C2550-1206)](http://www.bathandspaparts.com/cdn/shop/products/B24055D_large.jpeg?v=1561477217)
![Therm 4.0kW Low Flow Heater [3" x 6.469"] [240V] [Gatsby/Blue Ridge] (E2400-0300ET)](http://www.bathandspaparts.com/cdn/shop/products/46-371-1296_xl_large.jpg?v=1486197386)
![Therm 4.0kW Low Flow Heater [230V] [w/Tap] [DM/Vita] [Generic] (E2400-0127ETX)](http://www.bathandspaparts.com/cdn/shop/products/E2400-0127ETX_large.jpg?v=1486197357)
![Therm 4.0kW Low Flow Heater [13-1/2" x 2"] [240V] [90 Deg Tailpiece] [Saratoga] (C2400-C3037-2)](http://www.bathandspaparts.com/cdn/shop/products/C2400-C3037-2_large.jpg?v=1486197355)
![Therm 4.0kW Flo Thru Heater [15" x 2"] [240V] [Cal Spas] [w/Box] (C2400-0011)](http://www.bathandspaparts.com/cdn/shop/products/46-555-2002_xl_large.jpg?v=1486197301)
![Therm 11.0kW Flow Thru Heater [3"x 15"] [240V] [Pinnacle] (E21100-3100)](http://www.bathandspaparts.com/cdn/shop/products/46-238-1108_xl_large.jpg?v=1486197246)
![Spa Components 5.5kW Flo Thru Heater [15" x 2"] [Brett Aqualine EM100/EM190] (B24055E)](http://www.bathandspaparts.com/cdn/shop/products/B24055E_large.jpg?v=1486196400)
![Hydro-Quip 5.5kW Universal Flo Thru Heater [15" x 2"] [230V] [w/Union] (48-1555-HS)](http://www.bathandspaparts.com/cdn/shop/products/46-555-2210_XL_large.jpg?v=1486187449)
![Hydro-Quip 5.5kW M7 Flo Thru Heater [PS-B Series] [15" x 2"] [230V] [24" Cord] (48-PS55-SB)](http://www.bathandspaparts.com/cdn/shop/products/46-355-1300_XL_large.jpg?v=1486187437)
![Hydro-Quip 4.0kW Universal Flo-Thru Heater [15" x 2"] [240V] [w/2" Slip Unions] (48-1540-HS)](http://www.bathandspaparts.com/cdn/shop/products/46-555-2206_xl_large.jpg?v=1486187392)