ASUNT Cordless Submersible Water Pump, 500 GPH, Ryobi 18V Compatible

The ASUNT cordless submersible water pump is listed for use with compatible Ryobi 18V lithium-ion batteries, which are not included. Its stated flow rate is about 500GPH, with a compact pump-and-cable setup for water transfer and garden uses.

At a glance

The listing says the adapter fits several Ryobi 18V lithium-ion battery models.
A button switch is described on the cable. Keep the switch out of water.
The listing gives an approximate flow rate of 500GPH and describes uses including gardens, ponds and water features.

Price

$39.09Save 15%

Reference price: ~~$45.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Cordless operation is suited to water-transfer tasks where a mains connection is inconvenient, provided you already have a compatible battery.
The stated 500GPH flow rate and submersible design are aimed at small-scale water transfer and garden applications.

Cons

The battery is not included, so a compatible Ryobi 18V battery is needed for use.

Technical specifications

10 specifications

Identity
Brand	ASUNT
Style	Submersible
Colour	Green

Power and battery
Power configuration	Battery Powered
Battery compatibility	The water pump adapter's lower interface is compatible with Ryobi 18V lithium ion batteries, such as P108 P107 P105 P104 P103 P102, etc

Materials and construction
Material listed	Plastic, Stainless Steel

Pump and cable
Stated flow rate	The flow rate of the pump is about 500GPH.
Pump dimensions	This small water hose measures 7.87" L x 1.85" W
Cable and switch	and the cable is around 4m/0.16inch with a button switch (Note: Do not immerse the switch in water)
Power and current details	The mini water pump is 120W ,12V; Sump over 20 minutes, the max current is 10A with automatic protection

What to know before buying

The listing describes the pump as compatible with Ryobi 18V batteries, but also gives 12V for the pump and an unusual cable specification of “around 4m/0.16inch”. Its stated flow rate is approximate, and the claimed automatic protection is described in a sentence about sump use over 20 minutes. Confirm the relevant electrical, cable and operating details for your setup before buying. The cable switch must not be immersed in water.

What’s in the box

Water pump with adapterIncluded
CableCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Ryobi 18V battery owners seeking a cordless pump for garden water features, ponds or small water-transfer tasks.
Buyers who need a portable submersible pump and can work within the listing's stated flow rate and operating details.

Less suited to

Buyers who need a battery included or have no compatible Ryobi 18V battery.
Buyers who need a clearly specified pump voltage, cable measurement or operating duration before purchase.

ASUNT Cordless Submersible Water Pump, 500 GPH, Ryobi 18V Compatible · photo 2 — Additional product photo 2

Customer reviews on Amazon

3 / 5 · 3 ratings

5 stars35%35%
4 stars0%0%
3 stars32%32%
2 stars0%0%
1 star33%33%

Aggregate customer ratings are divided, with positive, middle and low ratings represented in the small sample. They do not establish why customers rated it that way. Buyers should weigh that uncertainty alongside the listing's approximate 500GPH claim and its battery and operating-detail requirements.