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Mini Water Pump DC 3V 5V RUNCCI-YUN
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RUNCCI-YUN 3pcs Mini Water Pump DC 3V 5V Micro Submersible Motor Pump, Mini Brushless Water Pump+ 3M Clear Vinyl Tubing Flexible PVC Tubing for Fish Tank Fountain Aquarium Garde（Vertical）（Black）

3.7 out of 5 stars 488 ratings
£7.49
FREE Returns
on any 4 Qualifying items | Terms
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Purchase options and add-ons

About this item

  • 【3v Dc Small Water Pump】 Spannung: DC 3V-5V; Stil: Vertical; Strom: 100-200mA
  • 【3M Schlauch】 Länge: 3M; Innendurchmesser = 0,22 "/ 5,54 mm; Außendurchmesser = 0,32" / 8,20 mm; Glatte Innenfläche für leichtes Fließen und leichte Reinigung.
  • 【Große Durchflussmenge】 Sieht klein aus, die große Durchflussmenge kann 100 L / H betragen.
  • ✔Note: Only suitable for experiments, not recommended for long-term use. If there is a problem with the pump please contact us and we will do our best to resolve it for you.
  • 【Multi-functional】 Unser Mini-Wasserpumpe und Schlauch Set ist ideal für Aquarium Garten zur Bewässerung Pflanzen Blumen.

Product Information

Technical Details

Manufacturer ‎RUNCCI-YUN
Part Number ‎R346
Product Dimensions ‎4.3 x 2.3 x 2.3 cm; 180 g
Item model number ‎R346
Colour ‎Black, Transparent
Style ‎Submersible
Material ‎PVC Vinyl
Power Source ‎Corded Electric
Voltage ‎3 Volts (DC)
Item Package Quantity ‎1
Flow rate ‎100 Litres Per Hour
Batteries included? ‎No
Batteries Required? ‎No
Item Weight ‎180 g

Additional Information

ASIN B08BZBN29C
Customer Reviews
3.7 out of 5 stars 488 ratings

3.7 out of 5 stars
Best Sellers Rank
Date First Available 3 July 2020

Warranty & Support

Amazon.com Return Policy:Regardless of your statutory right of withdrawal, you enjoy a 30-day right of return for many products. For exceptions and conditions, see Return details.

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RUNCCI-YUN 3pcs Mini Water Pump DC 3V 5V Micro Submersible Motor Pump, Mini Brushless Water Pump+ 3M Clear Vinyl Tubing Flexible PVC Tubing for Fish Tank Fountain Aquarium Garde（Vertical）（Black）

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Product description

Features:
Mini Pumps:
★DC voltage: 3-5 V.
★Driving mode: brushless DC design, magnetic drive.
★300 hours continuous life
Transparent hose:
★Material: PVC.
★I.D. Size: 0.22 inches/5.54 mm.
★ O.D. Size: 0.32 inches/8.20 mm.
★ Length: 39.37 inches/100 cm.
Package includes:
3 x DC 3V 5V Mini Micro Submersible Water Pumps
1 x 3 m transparent hose.

Customer reviews

3.7 out of 5 stars
488 global ratings

Customers say

Customers find the water pump to be great value for money. However, the functionality receives mixed feedback, with some saying it works well while others report it fails. Moreover, the power level and fit for purpose also get mixed reviews, with several customers noting it's not powerful enough and not suitable for their needs. Additionally, the pump needs to be submersed, and one customer mentions the 20 cm cable is not long enough.

Select to learn more

Value for moneyFunctionalityPower levelFit for purposeWaterproofCable lengthSubmersibility
6 customers mention ‘Value for money’5 positive1 negative

Customers find the water pump to be a great value for money.

"Great value and work very well" Read more

"easy to use super fast delivery great value for money" Read more

"Good pump for the price but noisy..." Read more

"Value for money..." Read more

13 customers mention ‘Functionality’5 positive8 negative

Customers report mixed experiences with the water pump's functionality, with some saying it works incredibly well while others mention it failed.

"...The motor was intended for aquaponic system but failed. No power to pump a single drop of water from a 2l container even if pipe horizontal...." Read more

"Great value and work very well" Read more

"Does not have power to absorb the water even from a plate. No chance with any tube.. Don't buy, really waste of money..." Read more

"...is very weak and if any air gets in the tube it struggles a lot, almost stopping." Read more

4 customers mention ‘Power level’2 positive2 negative

Customers have mixed experiences with the pump's power level, with some finding it as advertised while others report it's not powerful enough for their needs.

"Pump power was as advertised. The wire does not come with a usb head, just the exposed coppers...." Read more

"...The final output is very weak and if any air gets in the tube it struggles a lot, almost stopping." Read more

"Very low power pumps..." Read more

"NOT powerfull enough for my problem but certainly the right idea." Read more

3 customers mention ‘Fit for purpose’1 positive2 negative

Customers have mixed opinions about how well the water pump works, with some finding it suitable for small installations while others say it's not appropriate for their needs.

"Submersible pump which isn't waterproof. Not fit for purpose..." Read more

"surprisingly low performance, but may be ok for small installations" Read more

"Functional, but not fit for purpose..." Read more

3 customers mention ‘Waterproof’1 positive2 negative

Customers have mixed experiences with the pump's waterproof performance.

"1. These pumps are not waterproof for long because the water seal on shaft between the pump impellor and the motor is rubbish...." Read more

"Submersible pump. Do not submerse...." Read more

"Submersible pump which isn't waterproof. Not fit for purpose..." Read more

5 customers mention ‘Cable length’0 positive5 negative

Customers have mixed opinions about the cable length of the water pump, with one customer finding it too short at 20 cm, while another appreciates that it comes with very thin bare wires.

"...to realise is these are for electronics hobbyists - they come with very thin bare wires which need to have connectors fitted and a DC voltage from a..." Read more

"...2. the 20 cm cable is not long enough to keep the connection to the USB lead out of the water in my application." Read more

"Pump power was as advertised. The wire does not come with a usb head, just the exposed coppers...." Read more

"...The pump needs to be submersed as a result of not having an outlet to which a pipe can be attached." Read more

5 customers mention ‘Submersibility’1 positive4 negative

Customers have mixed experiences with the pump's submersibility, with some noting it needs to be fully submerged while others report issues with the outlet tube being submerged.

"100% not submersible first one has lasted all of 5 mins before shorting out,took apart to confirm,not only full of water,but also rust" Read more

"...Baring in mind the whole pump wasn't even submersed so very little water pressure from depth. Don't buy. They will break by design on continuous use." Read more

"...thing to be aware of though, they can work as a siphon if the outlet tube is submerged, I was pumping water from a jar into a dish, when the jar was..." Read more

"Submersible pump. Do not submerse...." Read more

Very weak pump
3 out of 5 stars
Very weak pump
I got three of these pumps to test diy plant irrigation system and the pump is too weak to do the job effectively. I give it 5.2V from 7V supply with approx. 2V drop at the motor driver. The water passes through Hall effect sensor to measure the output. The cable of the pump is too short and I had to extend it. The final output is very weak and if any air gets in the tube it struggles a lot, almost stopping.
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Top reviews from United Kingdom

  • Pegasus
    5.0 out of 5 stars Work great
    Reviewed in the United Kingdom on 22 September 2025
    Verified Purchase
    Great value and work very well
    Helpful
     Report
  • Charliek
    1.0 out of 5 stars Submersible pump which isn't waterproof. Not fit for purpose
    Reviewed in the United Kingdom on 12 July 2023
    Verified Purchase
    At £3/pump I didn't expect greatness. However I expected working pumps. I wanted to use these for a diy hydroponic system. First pump stopped working after 5 days of use. Replaced with second, which broke after few days. At this point I took one of the pumps apartnto reveal alot of water damage. Further investigation underlined what another reviewer mentioned. The casing is really poorly made and relies on some grease to keep the water out (when has a vibrating motor and propeller pushing water against the case. Baring in mind the whole pump wasn't even submersed so very little water pressure from depth. Don't buy. They will break by design on continuous use.
    Helpful
     Report
  • me
    4.0 out of 5 stars Very low power pumps
    Reviewed in the United Kingdom on 20 May 2022
    Verified Purchase
    surprisingly low performance, but may be ok for small installations
    One person found this helpful
    Helpful
     Report
  • Amazon Customer
    5.0 out of 5 stars No inlet nozzle. Pump needs to be submerged. Works well otherwise for the price point.
    Reviewed in the United Kingdom on 21 June 2021
    Verified Purchase
    This product would benefit from an inlet nozzle similar to the outlet. The pump needs to be submersed as a result of not having an outlet to which a pipe can be attached.
    Helpful
     Report
  • Del N.
    3.0 out of 5 stars Very weak pump
    Reviewed in the United Kingdom on 13 June 2023
    Verified Purchase
    I got three of these pumps to test diy plant irrigation system and the pump is too weak to do the job effectively. I give it 5.2V from 7V supply with approx. 2V drop at the motor driver. The water passes through Hall effect sensor to measure the output. The cable of the pump is too short and I had to extend it. The final output is very weak and if any air gets in the tube it struggles a lot, almost stopping.
    Customer image
    Del N.
    3.0 out of 5 stars
    Very weak pump

    Reviewed in the United Kingdom on 13 June 2023
    I got three of these pumps to test diy plant irrigation system and the pump is too weak to do the job effectively. I give it 5.2V from 7V supply with approx. 2V drop at the motor driver. The water passes through Hall effect sensor to measure the output. The cable of the pump is too short and I had to extend it. The final output is very weak and if any air gets in the tube it struggles a lot, almost stopping.
    Images in this review
    Customer imageCustomer imageCustomer imageCustomer imageCustomer image
    One person found this helpful
    Helpful
     Report
  • Robert Nightingale
    5.0 out of 5 stars It works incredibly well.
    Reviewed in the United Kingdom on 24 June 2023
    Verified Purchase
    Garden water feature .
    One person found this helpful
    Helpful
     Report
  • jondon
    5.0 out of 5 stars Value for money
    Reviewed in the United Kingdom on 15 November 2022
    Verified Purchase
    Very low suction very weak ok for small jobs like small fish tanks.
    One person found this helpful
    Helpful
     Report
  • Rob Johnson
    1.0 out of 5 stars Don't bother
    Reviewed in the United Kingdom on 17 July 2025
    Verified Purchase
    100% not submersible first one has lasted all of 5 mins before shorting out,took apart to confirm,not only full of water,but also rust
    Customer image
    Rob Johnson
    1.0 out of 5 stars
    Don't bother

    Reviewed in the United Kingdom on 17 July 2025
    100% not submersible first one has lasted all of 5 mins before shorting out,took apart to confirm,not only full of water,but also rust
    Images in this review
    Customer image
    Helpful
     Report

Top reviews from other countries

Translate all reviews to English
  • Emil Lundgren
    3.0 out of 5 stars Du får vad du betalar för.
    Reviewed in Sweden on 4 August 2023
    Verified Purchase
    Köpte dem för att cirkulera vattnet i hydroponiska odlingar. En av pumparna skar efter att ha jobbat 8 timmar om dagen i två veckor så man får vad man betalar för.
    Report
  • Oscar
    1.0 out of 5 stars De tres solo funciona una.
    Reviewed in Spain on 21 July 2025
    Verified Purchase
    De tres sólo funciona una.
    Report
  • Amazon Customer
    5.0 out of 5 stars ottimi
    Reviewed in Italy on 29 August 2025
    Verified Purchase
    ottimi
    Report
  • andre
    5.0 out of 5 stars Ça marche !
    Reviewed in France on 3 July 2024
    Verified Purchase
    Je suis contente ça marche ! Je les est pris pour faire une fontaine a eau pour mes chats ! Et pas de regret ça fonctionne les 3 ! Merci 👍👍👍👍🙏🙏🙏🙏
    Report
  • Jürgen Neldner
    5.0 out of 5 stars Schön klein und günstig
    Reviewed in Germany on 7 May 2025
    Verified Purchase
    Ich bastel mir damit eine automatische Blumentopf Bewässerung. Dafür reicht die kleine Pumpe auf jeden Fall.
    Report

Product Summary: RUNCCI-YUN 3pcs Mini Water Pump DC 3V 5V Micro Submersible Motor Pump, Mini Brushless Water Pump+ 3M Clear Vinyl Tubing Flexible PVC Tubing for Fish Tank Fountain Aquarium Garde（Vertical）（Black）

From RUNCCI-YUN

3.7 out of 5 stars, 488 ratings

Customer reviews

Price

One-time purchase: £7.49

All prices include VAT.

Purchasing options

Other sellers

Other sellers

About this Item

  • 【3v Dc Small Water Pump】 Spannung: DC 3V-5V; Stil: Vertical; Strom: 100-200mA
  • 【3M Schlauch】 Länge: 3M; Innendurchmesser = 0,22 "/ 5,54 mm; Außendurchmesser = 0,32" / 8,20 mm; Glatte Innenfläche für leichtes Fließen und leichte Reinigung.
  • 【Große Durchflussmenge】 Sieht klein aus, die große Durchflussmenge kann 100 L / H betragen.
  • ✔Note: Only suitable for experiments, not recommended for long-term use. If there is a problem with the pump please contact us and we will do our best to resolve it for you.
  • 【Multi-functional】 Unser Mini-Wasserpumpe und Schlauch Set ist ideal für Aquarium Garten zur Bewässerung Pflanzen Blumen.

Product description

Features: Mini Pumps: ★DC voltage: 3-5 V. ★Driving mode: brushless DC design, magnetic drive. ★300 hours continuous life Transparent hose: ★Material: PVC. ★I.D. Size: 0.22 inches/5.54 mm. ★ O.D. Size: 0.32 inches/8.20 mm. ★ Length: 39.37 inches/100 cm. Package includes: 3 x DC 3V 5V Mini Micro Submersible Water Pumps 1 x 3 m transparent hose.
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