Henden by Reece Compact Salt & Mineral Chlorinators
Henden by Reece Compact Salt & Mineral Chlorinators - Low Salt (1500ppm) / 25g (up to 50000L) is backordered and will ship as soon as it is back in stock.
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Henden by Reece Compact Salt & Mineral Chlorinators - Low Salt (1500ppm) / 25g (up to 50000L) is backordered and will ship as soon as it is back in stock.
Henden by Reece – Compact Salt & Mineral Chlorinators (15gm, 25gm, 35gm)
The Henden Compact Series is Reece’s in-house chlorinator range, designed as a simple, reliable solution for small to mid-sized Australian pools. With efficient chlorine output, a long-life titanium cell, and an ultra-compact controller, these units fit neatly into tight equipment spaces. They are suitable for both salt and mineral pools.
Pool Size Guide
- 15gm: suitable for pools up to 25,000 L
- 25gm: suitable for pools up to 50,000 L
- 35gm: suitable for pools up to 70,000 L
Key Features
- Compact Reece-exclusive design – smaller control unit that’s easy to fit on busy equipment pads.
- Smart self-cleaning titanium cell with adjustable cleaning cycles to reduce scaling and extend cell life.
- Quick-connect cell design to speed up installation and servicing.
- Flexible plumbing – cell can be installed horizontally or vertically, ideal for new builds or retrofits.
- Salt & mineral compatible – works with regular salt pools or mineral pools.
- Digital display screen for simple setup and clear status information.
- Efficient chlorine production for consistent water quality and clear water.
- Long-life self-cleaning cell for low-maintenance operation.
Salt Levels
- Standard models: 3500–4000 PPM (0.35%–0.40%)
- Low-salt models: from 1500 PPM (0.15%)
Technical Information
- Operating Salt Level: 1500 PPM (low-salt models)
- Phase: 1
- Supply Frequency: 50/60 Hz
- Voltage: 220–240 V
Dimensions (Power Supply Unit)
- Length: 250 mm
- Width: 154 mm
- Height: 185 mm
Warranty
- Power Supply: 3 years
- Cell: 3 years
- Labour: 1 year
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 | ~60.2–60.8 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.
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) |
|---|---|---|
| 1/2" | 15 mm | ~21.2–21.5 mm |
| 3/4" | 20 mm | ~26.6–26.9 mm |
| 1" | 25 mm | ~33.4–33.7 mm |
| 32 mm | ~42.1–42.4 mm | |
| 1.5" | 40 mm | ~48.1–48.4 mm |
| 2" | 50 mm | ~60.2–60.8 mm |
| 65 mm | ~75.2–75.5 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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