HQ Low-Flow Heater for Jacuzzi/Sundance 4.0kW

HQ Low-Flow Heater for Jacuzzi/Sundance 4.0kW
HQ Low-Flow Heater for Jacuzzi/Sundance 4.0kW

HQ Low-Flow Heater for Jacuzzi/Sundance 4.0kW

Regular price $219.95
Qualifies for Free Shipping Free standard delivery to contiguous US-48 for $100+ merchandise total.
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Ships next business day.


Low-Flow Trombone-Style Hot Tub Heater Assembly by HQ. Extended life element meets or exceeds the OEM heater by Laing Thermotech (Laing no longer makes heaters). You cannot buy a better heater at any price.

  • Long-life Titanium heater element
  • Hi-Limit Reset button
  • 4kW@240V / 1kW@120V

Product notes: Works with Jacuzzi, J-310, J315, J-325 or other hot tub spas using Laing design low-flow heaters such as Sundance Metro, Caprio, Tango, Solo, Bahia, Cayman, Palermo, Sweetwater Lagunas, Watkins Hot Spring. Replaces part# 6518.1. Jacuzzi® and Sundance® are registered trademarks of Jacuzzi Brands, LLC.

Spa Heater Installation Instructions 


Dimensions: 26-1/2”L x 5-1/2”W

Connection: 3/4” Barbed Fittings

Voltage: 240V/120V

Wattage: 4kW @ 240V – 1kW @ 120V

Pressure Switch/Sensor: Internal High Limit Sensor Disc (TCO) Included

Power Cord: 25” 3-Wire Cord w/1/4" Female Spade Connectors

Replaces Part Numbers: 6500-063, C3226-1A, C3473-1, 74912, 72494, 26-3226-1A-5T-K, E24060LHS, 26-3226-1A-5T-K, 2-00-0020, SEH-4300-NHW, 6595, 6596, 26-3473-1-5T-K, 46-238-1064, IHH-4300-NHW-7340, SEH-4300-NHW-6596, 26-3473, Laing 6518.1

Warranty: 1-Year Limited Warranty

Customer Reviews

Based on 19 reviews
Chuck B.
Jacuzzi Heater

Great experience. Ordering was easy. Item is exactly what i ordered

allen l.

Spa depot saves me hundreds of $$$$
On labor while teaching me how to service my hot tub

Jeffrey P.
Perfect fit and fast delivery

Perfect fit, thanks to good product description details.

Perfect product, exactly what I wanted! Easy to install

I bought this for my Sundance Spa. I wasn't 100% certain which heater I needed but the representative in the chat was extremely helpful and made sure I got the exact part I needed! Shipping was quick and the product came in perfect condition. Easy to install and worked immediately as expected. I highly recommend purchasing from Spa Depot. I certainly will the next time I need something.

Jack i.N.
Good product- Fast shipping!

Heater worked as advertised and received on time. Thanks Spa Depot!

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