Could I use it to pump water out of a large fish tank into the sink?

Yes, as long as it is sitting outside the tank.

Would this be able to pump water from a large rainwater tank in order to irrigate a poly tunnel soaker hose irrigation system?

I use the pump to transfer water from a pond to drain (2m3 per hour). If your hose irrigation system needs less then 2m3 per hour then it should fo the job. If your irrigation system a spray system not sure how far the spray will travel.

Does this require pressure to work? Im intending to use it to pump stationary water from a barrel into another barrel. Thanks

The pump needs to connect to DC 12V power. It can use to pump stationary water

What Power adaptor do I need to connect to this pump?

I used Canadian style cables with a 12 volt terminal connector. To battery

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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3L water pump

Product ID: 452703285

Details

Brand
Longrun
Colour
Black
Material
Plastic
Maximum flow rate
3 Litres Per
Maximum lifting height
2.5 Metres
Number of Packs
1

⚡12V DC power for versatile use

💧3L/min steady water flow

🔧65 PSI high-pressure output

996 kr

Duties & taxes included

In stock

Sold byAmazon NorwayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Norway.

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Description

💦 Pump up your adventure with power and precision!

DURABLE COPPER MOTOR - Premium pure copper coils ensure long-lasting performance and resistance to burnout.
MULTI USE POWERHOUSE - Ideal for caravans, boats, outdoor showers, and garden irrigation—your all-in-one water solution.
SMART PRESSURE CONTROL - Auto on/off pressure switch keeps water flow perfectly balanced, saving energy and pump life.
EFFORTLESS INSTALLATION - Quick plug design lets you set up in minutes—no hassle, no tools needed.
WHISPER QUIET OPERATION - Soft rubber mounts minimize vibration noise—peaceful water pressure wherever you go.

The LONGRUN 12V DC Water Pump delivers a reliable 3L/min flow at 65 PSI, powered by a durable copper motor with intelligent overvoltage protection. Designed for easy installation and whisper-quiet operation, it’s perfect for caravans, boats, gardens, and outdoor showers, ensuring efficient water pressure wherever life takes you.

Specifications

ASIN	B09D7T4FQ6
Best Sellers Rank	75,317 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 28 in Boat Water Pressure Pumps
Brand	Longrun
Colour	Black
Country of Origin	China
Customer Reviews	4.0 4.0 out of 5 stars (330)
Flow Rate	3 Litres Per Minute
Is Green Purchasing Law Compliant	Yes
Item Dimensions L x W x H	16.2L x 8.5W x 5H centimetres
Manufacturer	LONGRUN
Material	Plastic
Maximum Lifting Height	2.5 Metres
Model Number	3L
Number of Items	1
Number of Packs	1
Power source	Battery Powered
Product Style	Diaphragm
UPC	732122536098
Unit Count	1.0 count
Usage	Home gardening, Boat maintenance, Camping activities, Lawn care
Voltage	12 Volts

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TrustScore 4.5 | 7,300+ reviews

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Great price for an authentic product. Fast international shipping too!

3 weeks ago

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2 months ago

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996 kr

Duties & taxes included

In stock

Sold byAmazon NorwayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Norway.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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