E10 Spa Circulation Pump - GENUINE ITT Laing Xylem Goulds Thermotech

$419.00 $544.33

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E10 w/ AMP Plug E10 w/ Mini JJ - Type 1 E10 w/ 3-pin C38 Plug E10 w/ Blank Cord E10 w/ Spade Terminals

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Genuine Laing Thermotech E-10 Circulation Pump for Spas

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The Laing Thermotech E-10 Circulation Pump (also branded over the years as Xylem, Laing, ITT, Thermotech, and Goulds) is the industry-standard spa circ pump used worldwide since the 1990s. The current E-10 model supersedes all older E3, E5, SilentFlo 5000, and earlier black, red, and blue pump versions, offering higher flow, cooler running, and lower energy use.

This pump is commonly found in Caldera, Dimension One, Heritage, Hot Spring, Jacuzzi, Lanark, Monarch, Sierra, Southwest, Spa Industries, Sundance, Sweetwater, Watkins, and many others.

Compatible with standard 19mm (3/4") hose. Available with Mini JJ (Circ), AMP, C-38 (3-pin) plugs, or blank cord. Please check the plug type carefully when ordering. A qualified person can re-use an existing cord if it is in safe condition.

Genuine Australian-approved product with certification ESV180553. ⚠️ Be cautious of low-spec, non-approved imports offered elsewhere – they are not the same.

Documentation

Features & Specifications

Up to 40% more efficient and runs cooler than older models
Energy efficient – just 65W consumption
Flow rate: 60 LPM (15 GPM)
Max head: 6.5m (double the older SM959)
Max pressure: 29 PSI / 2 bar
Connections: 19mm / 3/4" barb
Dimensions: 150 x 110 x 130 mm
Max water temperature: 60°C / 140°F
Quiet operation: <40 dB
Rotatable pump head
Materials: Glass-reinforced Nylon housing & impeller, EPDM O-ring, Ceramic bearing, 316 Stainless Steel wetted parts

Warranty Information

1 Year Return-to-Base Warranty (Warranty Info Sheet)

Must be installed 100% horizontally level – if crooked, the impeller may rub and fail.
Internal damage or unsafe cord modifications are not covered.
Remove strainers/filters before the pump – restricted flow will damage the pump.
Do NOT use in saltwater applications.
Avoid clarifiers – they can block cartridge filters and starve the pump of flow.
Ensure water chemistry is correctly balanced – unbalanced/corrosive water will void warranty. (See corrosive water damage info)

Cross Reference & Compatibility

Replaces and supersedes Laing / Thermotech E-3, E-5, SilentFlo 5000, SM303, SM909, SM959, and other legacy spa circulation pumps.

Compatible Spa Brands

Sundance Spas
Hot Spring / Watkins
Jacuzzi
Caldera
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: 6000-125E, 6000-125EW, 98979740P1

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.

Quick example: A 2" / 50 mm fitting is named for the pipe it connects to, but the pipe’s actual outside diameter (OD) is approx. 60.3 mm (typically ~60.2–60.5 mm in AS/NZ pressure pipe).

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).

Important: For pool/spa work, most plumbing uses Pressure Pipe (AS/NZ standards) — not DWV. Always check OD and the pipe class against your equipment specifications.

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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