E10 Spa Circulation Pump - GENUINE ITT Laing Xylem Goulds Thermotech
E10 Spa Circulation Pump - GENUINE ITT Laing Xylem Goulds Thermotech - is backordered and will ship as soon as it is back in stock.
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Genuine Laing Thermotech E-10 Circulation Pump for Spas
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The Laing Thermotech E-10 (also sold as Xylem, ITT Laing, Thermotech, and Goulds) is the industry-standard spa circulation pump used globally since the 1990s. The current E-10 replaces earlier E-3, E-5, SilentFlo 5000, and legacy SM-series pumps, offering higher flow, cooler operation, and lower energy consumption.
Commonly found in Caldera, Dimension One, Hot Spring, Jacuzzi, Spa Industries, Sundance, Sweetwater, Watkins and other brands. Compatible with standard 19 mm (3/4″) hose. Available with Mini JJ (Circ), AMP, C-38 (3-pin) plugs, or blank cord — please confirm plug type before ordering. A licensed technician may re-use a safe, intact existing lead.
Genuine Australian-approved product – Certification ESV180553. ⚠️ Beware of imported copies that lack electrical approval — they are not the same product.
Key Specifications
- Power: 65 W (max)
- Flow rate: 60 LPM (≈ 15 GPM)
- Maximum head: 6.5 m (≈ double the older SM959)
- Maximum pressure: 29 PSI / 2 bar
- Connections: 19 mm / 3⁄4″ barb
- Max water temperature: 60 °C / 140 °F
- Noise level: < 40 dB
- Rotatable pump head for flexible mounting
- Body: Glass-reinforced nylon | Ceramic bearing | 316 Stainless steel shaft | EPDM seal O-ring
Documentation
Warranty & Reliability Information
1 Year Return-to-Base Warranty (details here)
These are excellent little pumps — but they are also one of the most common sources of spa warranty claims. Most failures are due to installation or water-quality issues, not manufacturing faults. Please read carefully:
- Must be installed perfectly horizontal – if tilted, the impeller can rub and seize.
- Remove all inline filters or strain-screens before the pump – restricted flow will overheat and damage the unit.
- Do not use in saltwater systems.
- Avoid clarifiers and flocculants – they can block filters and starve flow.
- Maintain balanced water chemistry – corrosive or acidic water voids warranty. See corrosive water damage info.
- Do not modify or splice cords — use the correct lead type for your spa controller.
Cross-Reference & Compatibility
Replaces and supersedes Laing / Thermotech E-3, E-5, SilentFlo 5000, SM-303, SM-909, SM-959, SM-959-NHW-26, 68219 and other legacy spa circulation pumps.
Compatible Spa Brands
- Jacuzzi®
- Sundance Spas
- Hot Spring / Watkins
- Caldera Spas
- Spa Industries / Signature
- Goulds / ITT Laing Thermotech
Jacuzzi® Models Supported
J-300 Series (2002 +): J-310, J-315, J-320, J-325, J-330, J-335, J-340, J-345, J-350, J-355, J-360, J-365, J-370, J-375, J-380, J-385
J-200 Series: J-270, J-280 (2007–2011)
Replaces Jacuzzi® Part Numbers
- 6000-125
- 6000-125E
- 6000-125EW
- 98979740P1
- 6500-460 (115 V models)
Model Relationships
| Core Laing Model | Replaced / Superseded Models | Typical OEM / Alias Numbers | Common Spa Brands |
|---|---|---|---|
| E-3 | Early compact circ pump, replaced by E-5 / E-10 | SM-1212, E-3-NHW | Hot Spring (older), Signature Spas |
| E-5 | E-3, SM-303, SilentFlo 5000 | 74427, 9026, 9406 (Hot Spring parts) | Hot Spring, Tiger River, Limelight, Caldera |
| E-10 | E-5, SM-909, SM-959, SM-959-NHW-26, 68219 | 6000-125, 6000-125E, 6000-125EW, 6500-460, 98979740P1 | Jacuzzi J-200 / J-300, Sundance, Caldera, Spa Industries, Dimension One |
Additional Notes
- SM-959-NHW-26 (Laing 73979) = current E-10 equivalent.
- SM-909 / SM-1212 = same hydraulic body as E-10, different motor revision.
- SilentFlo 5000 was Watkins’ brand name for the Laing SM-303 / E-5.
- Goulds / ITT / Xylem variants use identical internals under different labels.
All names and trademarks are the property of their respective owners and are used for reference purposes only.
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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