Astralpool Connect 10 Heater Sensor Kit and Solar Sensor Kit - For Heat Pumps & non-Astral Gas Heaters
Astralpool Connect 10 Heater Sensor Kit and Solar Sensor Kit - For Heat Pumps & non-Astral Gas Heaters is backordered and will ship as soon as it is back in stock.
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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.
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Delivery and Shipping Info*
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Astralpool Connect 10 Heater Sensor Kit and Solar Sensor Kit - For ...
Astralpool Connect 10 Heater Sensor Kit and Solar Sensor Kit - For Heat Pumps & non-Astral Gas Heaters is backordered and will ship as soon as it is back in stock.
AstralPool Connect 10 Temperature Sensor Kit – genuine sensor/well kit used to add accurate water temperature sensing to the AstralPool Connect 10 system.
This kit can be used for:
- Reading pool/spa water temperature
- Solar heating control - requires roof sensor
- Heating control when integrating Connect 10 with non-Astral heaters (gas, electric, and heat pumps – including non-Genus heat pumps) - requires hybrid heater module
Also suits: selected WWDG and Spa Pro systems (please confirm your model and connector type if unsure).
Choose the correct option:
-
Heater Sensor Kit
For water temperature sensing and enabling the Connect 10 to control heating (commonly used with non-Astral gas heaters and non-Genus heat pumps). Requires the Hybrid Heater Module. -
Solar Sensor Kit
For solar heating control (any brand). Allows a solar pump to be connected and then switched/controlled by the Connect 10 using temperature logic. Requires a roof temperature sensor. -
Just temperature sensing?
If you only want to display/read water temperature, no additional modules are required.
What’s included (kit contents):
Note: the paper packing list in the box isn’t always accurate. The parts below are what this kit is supplied with.
- 1x “Short” Temperature Sensor
- 1x Mixing Cell – 520147
- 1x Plug – 2030053
- 1x Green Seal – 2030055
- 1x Sensor Cap Well & fittings (between gland and nut) – 477183
- 1x Sensor Well – 477182
- 1x Screws – 78345
- 2x O-rings – 70003
- 2x Lock Nuts
- 2x Tails & Unions
Installation note: must be fitted by a qualified, experienced technician. Correct plumbing orientation, sealing, and sensor placement are critical for accurate temperature readings and reliable heater/solar control.
FYI: if you’ve seen these same images on other websites, they’ve likely been copied from our listings.
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
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) |
|---|---|---|
| 1/2" | 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 |
These are nominal sizes and are designed to fit matching fittings — not to measure exactly 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 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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