SX250-2 - 2.5HP - 2-Speed Jet Pump - Universal Spa Booster Pump - Spatex (XP2 Replacement)
SX250-2 - 2.5HP - 2-Speed Jet Pump - Universal Spa Booster Pump - Spatex (XP2 Replacement) - is temporarily out of stock and will ship as soon as it's available.
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Don't Guess - Ask Us!
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SX250-2 - 2.5HP - 2-Speed Jet Pump - Universal Spa Booster Pump - S...
SX250-2 - 2.5HP - 2-Speed Jet Pump - Universal Spa Booster Pump - Spatex (XP2 Replacement) - is temporarily out of stock and will ship as soon as it's available.
SX250-2 - 2.5HP - 2-Speed Jet Pump - Universal Spa Booster Pump - Spatex (XP2 Replacement)
SX250-2 Two-Speed 2.5HP Universal Spa Jet Booster Pump - Perfect for replacing the Aqua-Flo (Aquaflo) XP2 2.5HP, Balboa 4HPR, Davey QB2502, LX Whirlpool WP250 & WP250-II, Waterway, and many other spa jet booster pumps.
- Physically Stocked, unlike most "drop-shipping" websites.
- Shipped from VIC, NSW, WA, QLD
Plug & Lead Types:
- AMP plug for Balboa, Joyonway, Gecko in.y*
- Overmoulded AMP plug for Spanet, Davey
-
Any other plug type (eg: Mini JJ, Gecko in.link, etc): <-- Comes with Inline Connector - Electrician can use old plug to fit to new pump cable.
General Information:
- Supplied with 50mm / 2" unions and included split nuts. Split nuts make retrofitting of other pump brands with different threads, such as Spa-quip (SpaQuip) Maxiflow, Spa Systems Piranha and others.
- Retrofits Aqua-Flo XP2, Davey QB, LX LP/WP Whirlpool, Waterway and many other pumps without the need to plumbing changes.
- 230v, 50Hz, 2.5hp
- Low speed 0.53hp, 0.4kw, 2.5A | High speed 2.5hp, 1.85kw, 9A
- Wet-end can be rotated.
- See images for dimensions of pump performance curves.
- 2 year warranty*
- User & Installation Manual
Uses the same Wet-end (Plumbing) as many brands and models of pumps such as:
- Aqua-Flo XP2 2.5hp
- Davey QB2502
- LX Whirlpool WP250-II
-
Spa Industries APUM25252A
- Spanet XS30-2S Jetmaster
- Waterway PF-20-2N22X Executive Euro Pump (and others)
These pumps can replace most major brands of spa pumps directly, without the need to replumbing. Their unique split-union adaptors allow them to be used as retrofit pumps where the older pump may have different threads.
About the Spatex brand:
Spatex has over 30 years in the Australian spa industry. They've built these pumps with high-end bearings, mechanical seals, and quality materials. They exceed OEM specifications for all major brands of pumps. These pumps have been welcomed by the spa industry and are used by the best spa technicians around.
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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sx250-2-AMP-Balboa