Astralpool ZX 100 & ZX 150 Filter Tank Body
Astralpool ZX 100 & ZX 150 Filter Tank Body is backordered and will ship as soon as it is back in stock.
Delivery and Shipping
Delivery and Shipping
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Astralpool ZX 100 & ZX 150 Filter Tank Body is backordered and will ship as soon as it is back in stock.
Astralpool ZX100 & ZX150 Tank Bodies - Obsolete as of late 2025 - Replacement options below:
Models, Specifications & Replacements:
- ZX 50: 225lpm Max / 4.7M² Filter Area / 300kPa Max / 7.0kg / 510mm Height
- Replaced by XC 50 or Vortex CF75(more compact than XC)
- ZX 75: 290lpm Max / 7.0M² Filter Area / 300kPa Max / 8.0kg / 510mm Height
- Replaced by XC 75 or Vortex CF75(more compact than XC)
- ZX 100: 375lpm Max / 9.4M² Filter Area / 300kPa Max / 15.5kg / 710mm Height
- Replaced by XC 100 or Vortex CF100(more compact than XC)
- ZX 150: 445lpm Max / 14.0M² Filter Area / 300kPa Max / 16.5kg / 710mm Height
- Replaced by XC 150 or Vortex CF150(more compact than XC)
- ZX 200: 490lpm Max / 19.0M² Filter Area / 300kPa Max / 24.0kg / 910mm Height
- Replaced by XC 200 or Vortex CF200(more compact than XC)
- ZX 250: 515 lpm Max / 24.0M² Filter Area / 300kPa Max / 25.0kg / 910mm Height
- Replaced by XC 250
- ZX 310: No direct replacement. We recommend Twin XC 150 or similar.
Archived Information
Genuine Astralpool ZX Filter Tank Bodies for ZX 100, ZX 150, ZX 200, ZX 250. Also sold as Platinum Series. Comes with tank and plumbing fittings. Does not include cartridge, lid, pressure gauge, etc.
Note: Tanks are coming from Fluidra (Astralpool/Zodiac) as Black, Dark Gray, or Pearl Graphite in colour. We have no choice or control over this.
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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