Astralpool Universal Astralpool / Hurlcon / Pentair Spa Air Blower - With Air Switch
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Don't Guess - Ask Us!
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Delivery and Shipping Info*
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Astralpool Universal Astralpool / Hurlcon / Pentair Spa Air Blower ...
Astralpool
Astral Pool / Hurlcon / Pentair spa air blower bubbler with in-built air switch. This outdoor spa blower supersedes many older Hurlcon SX Series, Pentair, Onga, Dega, Poolrite, Quiptron, WWDG and SpaPro XS Series blowers, along with many other similar outdoor spa blowers.
We keep these physically in stock for fast shipping or local pick-up, unlike most drop-shipping websites.
Need an Industrial-grade blower? Click Here to check out the Spatex 1300W
This is a blower we know extremely well. One of Heater & Spa Parts’ owners actually designed this blower back when he worked for the original manufacturer, so this is a product with genuine history for our business.
Supplied complete with blower with in-built air switch, air tubing, 40mm and 50mm unions, mounting bracket, screws, and fittings. Older versions were sold in a range of colours and shapes as shown in the images, however the current version is dark grey only.
Common Replacements / Supersedes
- Older Hurlcon outdoor spa blowers
- Hurlcon SX Series blowers
- Many older Pentair, Onga, Dega, Poolrite, Quiptron and similar outdoor blowers
- WWDG outdoor blowers
- SpaPro XS Series blowers
Features
- In-built air switch
- 1200W motor
- Suited to 50mm PVC, or 40mm with reducer
- Built-in check valve
- EMC suppression
- In-built thermal high limit protection
- Outdoor spa / hot tub blower design
Important Notes
- It is important to replace faulty blowers. Spa air lines should be flushed regularly to help prevent stagnant moisture and bacterial build-up, including risks such as Legionella.
- Ensure all glue vapours are removed before operating the blower. Flammable solvent vapours can ignite and cause explosion or fire.
- Not designed for industrial applications or constant running.
- For spa / hot tub use only, where normal maximum run time is around 20 minutes per cycle. Premature brush wear from excessive run time is not covered by warranty.
- Need an Industrial-grade blower? Click Here to check out the Spatex 1300W
Part Numbers
60055 - with air switch
60052 - no air switch
Old no-air-switch part number: 60053
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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60055