Astralpool Echo & Solo Parts Listing
Astralpool Echo & Solo Parts Listing - is temporarily out of stock and will ship as soon as it's available.
Don't Guess - Ask Us!
Don't Guess - Ask Us!
Not sure if it’s the right part? Send us a message and a photo of what you’re replacing, or what you need, and we’ll help make sure you get the right part the first time.
Delivery and Shipping Info
Delivery and Shipping Info
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Warranty Information
Warranty Information
Astralpool Echo & Solo Parts Listing
Astralpool Echo & Solo Parts Listing - is temporarily out of stock and will ship as soon as it's available.
Astralpool Echo & Solo Salt Chlorinator Spare Parts
Genuine Astralpool spare parts for the Echo and Solo salt chlorinator range. Select the part you need from the dropdown - the number at the start of each option matches the callout number on the exploded diagram shown above.
- Genuine Authorised Fluidra Dealer & Warranty Agent
- We carry more spare parts than anyone.
Parts by Diagram Number
| No. | Part | Part Number |
|---|---|---|
| 1 | H.E.S Toroidal AU Transformer | SP72308 |
| 2 | Echo Chlorinator Power PCB | SP14849 |
| 2 | Solo Chlorinator Power PCB | SP14876 |
| 3 | Solo / Echo Screen | SP1117726 |
| 4 & 5 | Front Cover - Echo Chlorinator with Badge | SP1117729E |
| 4 & 5 | Front Cover - Solo Chlorinator with Badge | SP1117729S |
| 6 | H.E.S Front Cover Screw Pack | SP40114 |
| 7 | Plug Base - 3 Pin Flat | SP20026 |
| 8 | WiFi Antenna - RP-SMA Male Fit | SP12799 |
| 9 | Halo / EQ / Viron Cell Cable | SP714001 |
| 10 | Power Cable - Halo / Echo / Solo | SP1117811 |
| 12 | SPH0914900 | SPH0914900 |
Numbers 2, 4 and 5 differ by model. Number 2 is the power PCB - order the Echo version or the Solo version to match your unit, they are not interchangeable. Numbers 4 and 5 are the front covers, again Echo or Solo, each supplied with the correct badge.
Parts Not Numbered on the Diagram
- Mount Bracket - H.E.S - SP1117346
- Temperature Sensor Comp Bag - Halo / Solar - 1116931
- Heater 2-Pin Plug - Echo - SP14499
What Fits What
H.E.S parts are shared across the Halo, Echo and Solo range. Where a part is listed as Halo / EQ / Viron or Halo / Echo / Solo, the same component is used across those platforms. Parts named specifically for Echo or Solo are model-specific and will not fit the other unit.
The chlorinators these parts fit: Echo 18, Echo 25, Echo 35, Echo 45, Solo 18, Solo 25, Solo 35, Solo 45.
Manufacturer Catalogues, Diagrams & Part Numbers
Need exploded views, spare part numbers, product numbers, diagrams, or more product information? See the manufacturer catalogues: Astralpool Catalogue 2026 | Zodiac Catalogue 2026
Important Before Ordering: Please ensure you order correctly. Spare parts are not returnable once ordered. Confirm the part is suitable before ordering - use the diagram and catalogues above, seek professional assistance, or contact us with photos of your existing equipment, model details, serial numbers, and any labels.
As with all products, these must be installed and commissioned by a qualified and experienced person.
Common search terms
Astralpool Echo parts, Astralpool Solo parts, Echo chlorinator spare parts, Solo chlorinator spare parts, Echo power PCB, Solo power PCB, SP14849, SP14876, Echo front cover, Solo front cover, SP1117729E, SP1117729S, Echo screen, Solo screen, SP1117726, H.E.S transformer, SP72308, Halo Echo Solo power cable, SP1117811, Astralpool chlorinator circuit board, Fluidra Echo spare parts, Fluidra Solo spare parts, SpaPro chlorinator parts, WWDG chlorinator parts.
To the layperson, plumbing sizes and their names can be confusing due to the nominal sizes and naming conventions used.
This is not something we made up. Plumbers and manufacturers have used nominal (meaning ‘by name only’) sizing for decades.
Simply put, in plumbing, named sizes are often not the actual measurements of the pipe, fitting, or part. A PVC pipe called “50mm” or “2"” does not measure 50 mm anywhere. Instead, it follows nominal sizing, an internationally-standardised naming system.
Almost all fittings we use in the pool & spa industry use “pressure PVC” pipe & fittings. Do not confuse with “DWV” or other pipe & fittings and their names and sizes.
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) |
|---|---|---|
| 1/2" | 15mm | ~21.2–21.5 mm |
| 3/4" | 20mm | ~26.6–26.9 mm |
| 1" | 25 mm | ~33.4–33.7 mm |
| 1.5" | 40 mm | ~48.1–48.4 mm |
| 2" | 50 mm | ~60.2–60.8 mm |
| 2.5" | 65 mm | ~75.2–75.5 mm |
To reiterate, these are nominal sizes and are designed to fit matching fittings — not to measure what their name suggests. These are based on PVC Pressure Pipe AS/NZ 1477 Dimensions1.
- 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.
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 and other plumbing areas 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).
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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SP72308
