Edgetec / Decina 1.5HP Xtra-Heat w/ Air Switch - Heated Spa Bath Pumps - Triflo
Edgetec / Decina 1.5HP Xtra-Heat w/ Air Switch - Heated Spa Bath Pumps - Triflo is backordered and will ship as soon as it is back in stock.
Delivery and Shipping
Delivery and Shipping
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Edgetec / Decina Triflo 1.5HP Xtra-Heat w/ Air Switch - Spa Bath Pumps. Air Switch operated, pump is fitted with a 700watt stainless steel heater element . MULTI PORTS: can be plumbed as a top or front discharge plump. AIR BLEED: Air Bleed can be activated any time should air locking occur, the air bleed has an o'ring seal to ensure positive sealing once air has been expelled.
- We also recommend these as a replacement for the obsolete Davey XS 300, XS 300HB, and others. Note as with all Davey replacement pumps, new unions (included) will need to be fitted to suit these pumps.
Details / Models:
- Edgetec / Decina Xtra-Heat 1.5hp -
- E-6104 - TF110-XH-50
- E-6204 - DC110-XH / DC110-XH-50
-
Also replaces the following obsolete models:
- E-6103: TF110-AH-50 / TF110-AH-50-HF (non-heated)
- E-6203: DC110-AH-50 / DC110-AH-50-HF (non-heated)
- Dimensions: L: 406mm | W: 148mm | H: 198mm | 10kg
- Warranty: 1 Year Domestic / 6 Month Commercial - Note: we often see these pumps last over 10+ years!
- Important Note: Includes new barrel unions for plumbing when replacing pumps from other brands (e.g., Davey, Onga, Balboa, Spaquip, Englefield), as each brand uses different unions.
Documentation:
Xtra Heat spa bath pumps are operated from an air button located on the side of your spa bath, a simple press of the air button and your spa pumps starts, inviting you to sit back and relax in an invigorating hydro massage. A revolutionary new “Flat Plate” stainless steel 700 watt heater element is built into the pump, out of the main water flow path. Extensive research and development has renewed the process and captured the full power of the element that will maintain your bath water temperature.
The TriFlo pump internal design allows the water to self drain so that there is no residue water left in the pump when the spa is emptied in accordance with Local Health Regulations.
IMPORTANT: We are aware of some unscrupulous places selling bath pumps as standalone spa pumps. This is incorrect, and will lead to disappointment.
- These bath pumps are intended to help maintain temperature in a bath to roughly 36-38° and not to heat a bath from cold.
- Spa bath pumps are designed for spa bathtub operation only and should not be used in chemically-treated water or permanently-filled spas.
- For standalone permanently-filled spas, click here for retrofit kits.
In plumbing, named sizes are not the actual measurements. A pipe called “50mm” or “2"” does not measure 50 mm across. Instead, it follows nominal sizing, an internationally-standardised naming system.
Use the Outside Diameter (OD) to check your pipe against fittings. Below is a quick reference for common spa & pool pipe sizes:
| Imperial Name | Metric Name | Pipe Diameter (OD) |
|---|---|---|
| 1" | 25 mm | ~33.4–33.7 mm |
| 1.5" | 40 mm | ~48.1–48.4 mm |
| 2" | 50 mm | ~60.2–60.5 mm |
| 2.5" | 65 mm | ~75.2–75.5 mm |
These are nominal sizes and are designed to fit matching fittings — not to measure exactly what their name suggests.
Understanding Plumbing Sizes & Nominal Measurements
Plumbing sizes can be confusing. PVC and many other pipe systems use nominal sizes—the size is a name, not the exact measured dimension. This convention is used across most pool and spa systems so that pipes and fittings remain compatible.
Why pipe sizes don’t match the measurements
The Nominal Pipe Size (NPS) system standardises pipe dimensions so that pipes, fittings, valves, and accessories interoperate. Plumbers work with these nominal names every day, but DIYers can be tripped up if they try to match by a tape-measure alone.
How to Measure Pipe Correctly
-
Pipe size is identified by:
- The pipe’s Outside Diameter (OD).
- The fitting’s Inside Diameter (ID) (socket opening).
- Pipe Class / Schedule (e.g., Class 9, 12, 18 or Sch 40) relates to wall thickness and therefore the Internal Diameter (ID) and pressure rating.
- The outside diameter of a fitting is not useful (wall thickness varies by manufacturer).
PVC Pressure Pipe AS/NZ 1477 Dimensions1:
Common nominal sizes with typical outside diameters and indicative inside diameters by class.
| Imperial Name | Metric Name | Outside Diameter (OD) | Class 9 IDº | Class 12 IDº | Class 18 IDº |
|---|---|---|---|---|---|
| 1/2" | 15 mm | ~21.2–21.5 mm | 18.3 mm | 17.8 mm | |
| 3/4" | 20 mm | ~26.6–26.9 mm | 23.7 mm | 22.4 mm | |
| 1" | 25 mm | ~33.4–33.7 mm | 30.5 mm | 29.8 mm | 28.1 mm |
| 32 mm | ~42.1–42.4 mm | 38.5 mm | 37.5 mm | 35.4 mm | |
| 1.5" | 40 mm | ~48.1–48.4 mm | 45.2 mm | 44.1 mm | 42.8 mm |
| 2" | 50 mm | ~60.2–60.5 mm | 55.2 mm | 53.7 mm | 50.5 mm |
| 65 mm | ~75.2–75.5 mm | 68.9 mm | 67.0 mm | 63.2 mm | |
| 2.5" | ~73 mm |
- º Internal diameters vary slightly by manufacturer and class.
- 1 Not all pool/spa fittings match these dimensions exactly. Some do not follow Australian or international standards. Chinese spas may use proprietary fittings.
Hose & Tube Dimensions
Common flexible hose sizes used in pool/spa systems (approximate IDs).
| Imperial Name | Metric Name | Inside Diameter (ID) |
|---|---|---|
| 3/8" | 9–10 mm | ~9 mm |
| 3/4" | 19 mm | ~19 mm |
BSP – British Standard Pipe Thread Sizes
BSP thread names are also nominal. The thread OD will not equal the nominal name.
| BSP Thread Size Naming | Outside Diameter (mm / inch) | TPI |
|---|---|---|
| 1/16" BSP | 7.7 mm / 0.304" | 28 |
| 1/8" BSP | 9.7 mm / 0.383" | 28 |
| 1/4" BSP | 13.16 mm / 0.518" | 19 |
| 3/8" BSP | 16.66 mm / 0.656" | 19 |
| 1/2" BSP / 15 mm | 20.99 mm / 0.825" | 14 |
| 5/8" BSP | 22.99 mm / 0.902" | 14 |
| 3/4" BSP / 20 mm | 26.44 mm / 1.041" | 14 |
| 7/8" BSP | 30.20 mm / 1.189" | 14 |
| 1" BSP / 25 mm | 33.25 mm / 1.309" | 11 |
| 1-1/4" BSP | 41.91 mm / 1.650" | 11 |
| 1-1/2" BSP / 40 mm | 47.80 mm / 1.882" | 11 |
| 2" BSP / 50 mm | 59.61 mm / 2.347" | 11 |
| 2-1/4" BSP | 65.71 mm / 2.587" | 11 |
| 2-1/2" BSP | 75.18 mm / 2.960" | 11 |
| 3" BSP | 87.88 mm / 3.460" | 11 |
| 4" BSP | 113.03 mm / 4.450" | 11 |
| 5" BSP | 138.43 mm / 5.450" | 11 |
| 6" BSP | 163.83 mm / 6.450" | 11 |
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