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WP400-I LX 4HP Single Speed Pump

WP400-I LX 4HP Single Speed Pump
 WP400-I LX 4HP Single Speed PumpWP400-I LX 4HP Single Speed Pump 
Our Price:  £237.00

(Inc. 20% VAT)

Quick Find Code:  12025



No stock, delayed despatch


Made by LX / Whirlpool

WP400-I - 1 speed 4.0HP

This is a 4HP single speed hot tub pump is found in larger hot tubs, it has been around for many years now and is very reliable in comparison to the American brands available, so it makes a great replacement.

This pump comes with 2" union fittings (76mm thread), however if you have a larger suction on the front of your pump you will need an adapter to 2.5" plumbing and a o-ring to make this pump fit. (No extra plumbing required).

Note - This Spa pump is supplied with a 3 core plain cable 1 Lines, 1 Neutral and 1 Earth.

Related Products

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2" to 2.5" Face Plate Adapter£6.50

Converts pump wet ends to 2.5"

4 Pin AMP Connector

4 Pin AMP Connector£3.79  (3)

LX Pump Prime Bleed Valve

LX Pump Prime Bleed Valve£1.15  (1)

O Ring 2'' for Pumps and Heaters

O Ring 2" for Pumps and Heaters£0.89  (2)

Product Specification

Manufacturers Code

MPN:  WP400-I

Product Attributes

Quick Find Code:  12025
Brand:  LX
Pump Horse Power:  4
Pump Speeds:  1
Length (cm):  42.2
Width (cm):  21
Height (cm):  23.5
Motor HP:  4
Pump KW:  3.0
Pump Amps:  14
Pump RPM:  2900
Impellor HP Size:  4
Includes Cable:  Yes
Wet End Suction Location:  Middle
Wet End Return Location:  Right
Wet End Return Union Size:  2
Wet End Suction Union Size:  2
Qmax:  780 Litres Minute

Please note all Hot tub Parts sold are UK Spec, which means designed for 230 V at 50Hz

The following manuals are available for this product

Need More Detail?

At Hot Tub DIY we want to make it as easy as possible for you to repair or build your hot tub, the following guides relate to this product.

For a full list of guides please go to our Articles page and choose a section : Hot Tub Help Articles

Hot Tub Pump Guides

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Delivery Information

Our Delivery Companies

We’ve reduced many of the delivery charges and now offer a better range of options linked to the value of your order. Plus we have included free packaging and handling for all orders.

Some larger Items

Some larger items (for example hot tub covers) come with a delivery surcharge, these are individual costs that only apply to these specific items. Detail of the costs are on the specific item pages and appear in the postage cost.

Liquids and Chemicals

Please note we cannot send liquids and chemicals to anywhere other than main land UK due UK and international Chemical handling laws.

England and Wales

Next Day Delivery

England and Wales (if ordered before 12:00 (12am) Signed Courier service - £9.00

Orders placed before 12 Mid Day will arrive the next working day via courier excluding Saturday, Sunday and bank holidays

Deliver method either APC or DPD.

Standard 2-4 days delivery

Delivery England and Wales Only - Cost £6.50 (under £50) - Free on orders over £50

Delivery by UPS or APC


All other items and areas

The standard charges have been set high to cover extra cost on postage to other areas, so please get in touch for a quotation.

Scottish Highlands & Islands - £20 (call/email for cheaper delivery via Royal Mail)
Northern Ireland and Isle of Man - £26.40 (call/email for cheaper delivery via Royal Mail)
Southern Ireland - £18.00 (call/email for cheaper delivery via Royal Mail)
Channel Island - £47.00 (call/email for cheaper delivery via Royal Mail)
Please Call or Email if you are outside these areas

Europian Delivery

The following areas take between 2 -5 days to deliver.

Inside Europe A Austria, Belgium, Denmark, France, Germany, Luxembourg, Netherlands - £14
Inside Europe B Czech Republic, Estonia, Finland, Hungary, Italy, Poland, Portugal, Slovakia, Slovania, Spain, Sweden - £29 (call/email for cheaper delivery options)
Inside Europe C All other please get in touch. - £ ?
Please Call or Email if you are outside these areas

Want more detail or help on a WP400-I LX 4HP Single Speed Pump?

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Please feel free to ask any questions about this product or other hot tub related items including how to repair, replace and test this item or any other items.

Telephone: 01209 808343


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Please note all Hot tub Parts sold are UK Spec, which means designed for 230 V at 50Hz

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