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Hot Tub Parts, Spa Spares and Accessories

Welcome to 'Hot Tub DIY' we are hot tub pump and spare parts specialists, we have hundreds of pumps to choose from with free next day delivery and literally thousands of hot tub parts at very competitive prices and offer free technical advice to help you to get the right part easily. There are many ways to find what you want on our site, type anything into the search box on the navigation to do with spares;  and it will give you a list, type a general word (for example pump) and choose from the drop down fields in the left column. Also why not try out our new feature product comparison, the ' Pumps' and 'Filters categories have had a make over try our new compare option where you can compare up to 4 items at a time next to each other.

We also have a range of accessories including filters, fragrances chemicals and even toys!

Some of our other features consist of combination discounts on everything from bulk buying hot tub filters to combination sales on covers and cover lifters. If at any point you need more detail on any spa or hot tub related issues please contact us via or contact page.

'10 Hot Tub Tips' every hot tub owner needs to read

Why not take a minute out and read: 10 Hot Tub Tips every owner needs, Read these tips they may save you money and keep your tub running smoothly.  

Featured Products
Gecko SSPA 2 Control Box

Gecko SSPA 2 Control Box£730.99   £657.89

Dual Pump System And Air Blower

AquaSparkle Chlorine Granules

AquaSparkle Chlorine Granules£11.47   £10.32

AquaSparkle Chlorine Starter Pack

AquaSparkle Chlorine Starter Pack£42.32   £38.09

Balboa Heater Seals 2'' Pair

Balboa Heater Seals 2" Pair£3.78   £3.40

3kw Heating Element Titanium Coated

3kw Heating Element Titanium Coated£55.19   £49.67

HA440 Hydro Air Magnaflow 2 speed pump Replacement

HA440 Hydro Air Magnaflow 2 speed pump Replacement£328.90   £296.01

Power Storm Jet Diffuser

Power Storm Jet Diffuser£7.07   £6.36

Heater for wooden hot tubs bundle

Heater for wooden hot tubs bundle£504.17   £453.75


Bundle of parts

PLBS75 Filter

PLBS75 Filter£31.27   £28.14

14uF Pump Capacitor

14uF Pump Capacitor£17.47   £15.72

GC150-2XJ-B Pump Replacement Kit

GC150-2XJ-B Pump Replacement Kit£340.24   £306.22


2 Speed Pump

AquaSparkle ScaleAway

AquaSparkle ScaleAway£14.74   £13.27

Latest Product Reviews
part replacement
Sunday, 19 February 2017  |  Terry

Delivered within 2 days. well packed part was as describe replaced broken part and hot tub is working perfect.

Look no further
Sunday, 19 February 2017  |  Ian

I needed a replacement heater for my hot tub. Found one on another site and ordered. When it hadn't arrived I contacted them only to discover that they wanted an extra 12 to ship on top of the 7 already charged. So I looked around and found hot tub diy. The service couldn't have been better. The owner helped me choose the correct model as there are a few similar models. Not only was the heater cheaper but I was only charged 6 to send to the Highlands. The heater itself was actually over 100 cheaper than some sites. I will not even look anywhere else for my parts in future. Great price, great service. Thank you very much the heater is fitted and working perfectly.

Good product
Wednesday, 15 February 2017  |  Chris

Great service and delivery - this product has no part number on it - just the two dots on shaft

Great replacement
Wednesday, 15 February 2017  |  Chris

Fitted this to my aqua flo xp2 pm - no issues
Delivery was very good

Latest Products
Hot Tub Cover Clips

Hot Tub Cover Clips£20.15   £18.14

O-Care Spa Water Care

O-Care Spa Water Care£89.74   £80.77

Weekly Spa Care

Wooden Hot Tub Bundle - 6 Jets and 1 Spd Boost Pump

Wooden Hot Tub Bundle - 6 Jets and 1 Spd Boost Pump£515.51   £463.96

Wooden Hot Tub Bundle - 6 Jets and 2 Spd Pump

Wooden Hot Tub Bundle - 6 Jets and 2 Spd Pump£1,340.33   £1,206.30

Air Bubble Diagram

Air Bubble Diagram£53.58   £48.22

Wooden Heater Diagram 1

Wooden Heater Diagram 1£53.58   £48.22

Hot Tub DIY

Hot Tub Help? Call Now 08455 197 497Call Mon - Fri 10am - 4pm calls cost a local rate *** Sale On 10% Discount On Everything Across The Store and free technical advice via telephone or email and free delivery on purchases over 50 where possible ***