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Technical Info
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  • Replacement Heater
  • 2.1/3.4kW
  • P/N: 26-C3548-1-7T-F
  • Build-In Thermal Cut Out (Manual Reset)

Laing FastFlo Replacement Heater - 2.1/3.4kW

Suitable for DIMENSION ONE SPAS (Manual Reset)
0 Reviews
SKU: HTR-5544MPN: 26-C3548-1-7T-FRRP:£601.14 LOGIN FOR TRADE PRICING

£450.85

INC VAT
Available to Order
Not enough physical stock available in retailable warehouse to fulfil, but is on demand
QTY
Get it 28/05/2026Order by 28/05/2026 23:00
Next Day Delivery from £9Secure ShoppingReturn within 28 days of receiptWhatsApp us: +44 7388 699 893
LID: 2326

Product Details

Laing (FastFlo) Replacement Heater - Trombone Style - 2.1/3.4kW - P/N: 26-C3548-1-7T-F

Build-In Thermal Cut Out (Manual Reset)

Replacement low flow tri-bend / trombone style heater assembly with 3/4 inch barb fittings, and built-in Manual Reset TCO (thermal cutoff). 

This is a trombone style heater that replaces similar style Laing low flow tri-bend heaters. The heater is rated at 3.4kW/230V & 2.1kW/115V. 

The internal low density heater element is made of titanium metal. It provides the best heat to water transfer. 

Commonly found in: Dimension One Spas (D1), Reflections Spa Model.  

This heater comes with 4 electrical wires with terminal ends. 

This model is without the Flow Switch. If you require one with Flow switch please Contact us . 

Replaces: C3548-1, 01781-27, 01781-20

TOP TIP: Easy to fit, even if the hot tub has water in it!  Remove the clips and pull the pipe off the heater. Use a stopper (wine bottle cork works best) to plug the flexible pipe and remove. Instal and reverse the process to reconnect the plumbing.

Important Information:
Our range of Spa Packs must be installed by a competent individual or tradesman, that is trained within the industry. Spa Packs and other computerised equipment are exempt from our returns policy if they have been opened or installed. If the spa pack is suspected as being faulty, it will need to be returned to us within the warranty period and will then be forwarded to the manufacturer for inspection. If deemed to be faulty, we will replace under warranty. If the board is not at fault or is found to have been damaged due to installation, an additional charge will be required to cover the costs of shipping and return.
 *Please ensure this is the correct Spa Pack as this item is non-refundable - If you are unsure, please contact our friendly customer service team for advise & support

Technical Specifications

Mount TypeStud
Sensor Type(s)Hi Limit - Probe,Temperature - Probe,Reed Switch - Flow
ModelLaing FastFlo Heater
Length (includes tails)520
Plumbing Connection3/4''
Compatible Spa Pack Other
TypeLow Flow
ElementTitanium
Power 2.1
Voltage / Hz 230V - 50/60Hz
Amps8.4 &13.6
Integrated in Spa PackNo
MPN26-C3548-1-7T-F
Sash 1Works with Dimension One
Sash 2Triple Bend /Trombone Style
Sash 32.1kW / 3.4kW
Sash 43/4" Barb
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