Reltech Pureswim Single Speed Pool Pumps - Gen 3 - Astral & Hurlcon Retrofits
Reltech Pureswim Single Speed Pool Pumps - Gen 3 - Astral & Hurlcon Retrofits - is backordered and will ship as soon as it is back in stock.
Delivery and Shipping
Delivery and Shipping
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The Pureswim pumps by Reltech retrofit Astralpool & Hurlcon CX, CTX, TX, E-series pumps, using the same plumbing layouts.
- PSS1075 - 0.75HP - replaces E-170, and others
- PSS1100 - 1.0HP - replaces CTX 280, E-230, TX 240 1.0, CX 240 1hp, and others
- PSS1150 - 1.5HP - replaces CTX 400, TX 360 1.5, CX 320 1.5hp and others
- SS2000 - 2.0HP - replaces CTX 500, TX 2.0, CX 2hp and others
High-Performance Australian-Made Pump for Pools & Spas - The Reltech GEN3 Series pool and spa pumps are designed for superior water circulation, providing high water flow and maximum pressure with low noise operation and energy efficiency. Whether for residential or commercial applications, these pumps offer reliable performance, rapid priming, and energy savings, making them an ideal choice for maintaining crystal-clear pool and spa water.
Key Features:
- High-Performance Pumping – Delivers optimal flow rates and rapid water turnover.
- Energy Efficient – Available in 6-star energy-rated models for cost-effective operation.
- Low Noise Design – Runs quietly to ensure a peaceful pool environment.
- Durable & Weather-Resistant – Made in Australia with corrosion and UV-resistant materials.
- User-Friendly Maintenance – Large, easy-to-remove strainer basket for debris collection.
- Versatile Installation – Suction and discharge ports designed to fit 40mm or 50mm pipes.
- Built-in Thermal Protection – Prevents motor damage from overheating.
- Australian Safety Standards Compliant – Designed for secure and efficient operation.
- 3-Year Limited Warranty – Ensures peace of mind and long-term reliability.
Available Models & Performance:
The GEN3 Series is available in multiple models, from 0.75HP to 2.0HP, catering to various pool and spa sizes. Each pump is built with a powerful motor and high-flow impeller, ensuring maximum efficiency and performance.
Why Choose Reltech GEN3?
Designed and manufactured in Australia, the GEN3 Series is built to last, offering efficient water circulation, high durability, and energy savings. Whether you’re upgrading your current system or installing a new one, these pumps provide exceptional reliability and performance, making pool and spa maintenance easier than ever.
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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