3hp Waterway 48F Hi-Flo Pump Impeller
Genuine replacement 3hp impeller 310-4020 for Waterway Hi-flo pump wet ends designed specifically for use with Hot Tubs & Spas. These 3hp impellers will fit any Waterway 48 frame or 56 frame Hi-flo spa pump wet ends but you should fit the same horsepower equivalent. The horsepower rating is usually stamped into the centre of each Waterway impeller so check there to match up your replacement.
Vein Gap Distance - To aid in matching up the correct impeller HP measure the vein gap distance, this is the distance between the front and rear plates of the impeller. Compare with the specifications of this Waterway impeller below.
Product Specifications
- Manufacturer - Waterway Plastics
- Part Number - 310-4020
- Type of Product - Pump Wet End Impeller
- Impeller HP - 3hp
- Vein Gap Distance - 12mm
- Diameter - 93mm
- Length - 80mm
Top Tips
We recommend if you are replacing the impeller inside your hot tub pump wet end to also replace the shaft seal kit that seals the rear of the impeller shaft to the wet end rear volute. This will avoid having to strip down your pump again to replace this seal kit in the near future. Please see the related products below for a replacement seal kit for your Waterway pump wet end.
We Are Here To Help!
It can be a bit confusing choosing the correct hot tub parts for your hot tub pump as brand names and models are not always written on them. The quickest way is to simply send us some images of the complete hot tub pump you need the replacement parts for through our Contact us page and let us do the work for you.
Your order will generally be dispatched on the same working day as receipt of payment is received before 2pm. We ship via DPD with tracking.
When you place an order, it's often better to provide us with your mobile telephone number instead of your landline number. This is so we can give it to our courier, who will then text you your exact time and date of delivery, even down to the hour it will be delivered.
Please be aware: All the delivery prices listed below are inclusive of VAT to the UK. All other countries will not be charged VAT. *All spa covers and chemicals can only be shipped to UK mainland, please call for a shipping quote for all other delivery destinations.*
SPA COVERS: Unfortunately due to the size of spa covers and the costs to send them they are not included within the free shipping method over £100. Shipping covers are charged at £24.00 with a 1-2 day service when ready, stock covers take around 10-14 days from order to be shipped, custom covers 8-10 weeks from date of order.
| Region | Cost & Delivery Time |
| Delivery to England, Wales & Scotland (Excluding Scottish Highlands & Islands) |
Order values over £100 - Free (DPD Next working day) |
| Scottish Highlands & Islands | Delivery to the Scottish Highlands & Islands (Up to 20 kgs), Prices are doubled when over 20 kgs. DPD 2-3 days - £25.62 |
| Northern Ireland | Delivery to Northern Ireland (Up to 20 kgs), Prices are doubled when over 20 kgs. Economy delivery 2-3 days - £18.00 |
| Isle Of Scilly | Delivery to Isles of Scilly (Up to 20 kgs), Prices are doubled when over 20 kgs. DPD 2-3 days - £26.90 |
| Republic Of Ireland | Delivery to the Republic of Ireland (Up to 20 kgs), Prices are doubled when over 20 kgs. DPD 2-3 days - £15.00 (ex. VAT) |
| Isle of Man | Delivery to the Isle of Man (Up to 20 kgs), Prices are doubled when over 20 kgs. DPD 2-5 days - £26.90 |
| Jersey & Guernsey | Delivery to Jersey & Guernsey (Up to 20 kgs), Prices are doubled when over 20 kgs. DPD 2-5 days - £25.00 (ex.VAT) |
| Delivery to Belgium, France, Germany, Luxembourg & Netherlands. |
Delivery 2-3 days - £15.00 ex. VAT (up to 20kgs), Price doubles when over 20 kgs. |
| Czech Republic, Slovakia, Italy & Spain (Mainland). | Delivery 2-5 days - £22.42 ex. VAT (up to 20kgs), Price doubles when over 20 kgs. |
| Switzerland | Delivery 2-5 days - £48.04 ex. VAT (up to 20kgs), Price doubles when over 20 kgs. |
| Austria & Denmark | Delivery 2-5 days - £18.15 ex. VAT (up to 20kgs), Price doubles when over 20 kgs. |
| Iceland, Norway & Serbia | Delivery 4-6 days - £68.32 ex. VAT (up to 20kgs), Price doubles when over 20 kgs. |
| Croatia, Estonia, Finland, Hungary, Poland, Portugal, Slovenia & Sweden | Delivery 4-6 days - £29.36 ex. VAT (up to 20kgs), Price doubles when over 20 kgs. |
| Canary Islands: Gran Canaria, Tenerife, La Palma, Lanzarote, Fuerteventura, La Gomera, El Hierro. | Delivery 4-6 days - £82.20 ex.VAT (up to 5kgs), £118.49 ex.VAT (up to 10kgs), £192.15 ex.VAT (up to 20kgs), |
| Bulgaria, Greece, Latvia, Lithuania, Romania. | Delivery 4-9 days - £38.43 ex. VAT (up to 20kgs), Price doubles when over 20 kgs |
| Balearic Islands: Majorca, Minorca, Ibiza, Formentera, Cabrera. | Delivery 4-6 days - £32.03 ex. VAT (up to 20kgs), Price doubles when over 20 kgs. |
| Cyprus | Delivery 4-6 days - £79.00 ex.VAT (up to 5kgs), £117.43 ex.VAT (up to 10kgs), £194.29 ex.VAT (up to 20kgs). |
| United Arab Emirates, Bahrain, Qatar. | Delivery 4-9 days - £122.76 ex.VAT (up to 5kgs), £186.81 ex.VAT (up to 10kgs), £256.20 ex.VAT (up to 15kgs), £320.25 ex. VAT (up to 20kgs). |
| Turkey, Russia & Malta. | Please call us for a quote. |
| USA | Delivery Via UPS 4-5 Days - £75.00 ex.VAT (up to 20kgs), Price doubles when over 20kgs. |
| Worldwide Shipping | We can ship parts worldwide. If your country is not listed above then please contact us for a shipping quote. |
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