I plan to use it to replace an existing pump. Whatis the "tall" dimension with the outlet facing up?

It is 3.5 inches from the rubber suction cups to the top of the output outlet. The pump also works if you lay it on it’s side.

Will this work in a small outdoor waterfall

The pump will take water up to a modest sized waterfall or a small brook. I have 2 similar pumps at my home, both work well and seem to be very long lasting.

Will the plug fit down a 15/16 inch pipe? I need this for an 3 tired fountain

If I remember correctly, no. I had to make a step up splicer for the largest hose that fit their largest adapter. I don't remember their largest size, but I was only stepping up to a 5/8" hose from their largest available hose size. It was a challenge and had to think outside the box but it can be done, good luck!

Fountain Pump, 400GPH Submersible Water Pump, Durable 25W Outdoor Fountain Water Pump with 6.5ft Power Cord, 3 Nozzles for Aquarium, Pond, Fish Tank, Water Pump Hydroponics, Backyard Fountain

Fountain Pump, 400GPH Submersible Water Pump, Durable 25W Outdoor Fountain Water Pump with 6.5ft Power Cord, 3 Nozzles for Aquarium, Pond, Fish Tank, Water Pump Hydroponics, Backyard Fountain

Product ID: 571964550

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Details

Brand
CWKJ
Colour
Black
Material
Stainless
Style
Submersible
Product Dimensions
5.8L x 7.1W x
Power Source
Corded

💧400 GPH max flow

🔇Ultra-quiet operation

⚙️Adjustable water pressure

Description

💦 Elevate your space with serene, customizable water flow—because your oasis deserves the best.

WHISPER QUIET FLOW - Experience tranquil water sounds without the noise—perfect for your peaceful patio moments.
POWERFUL YET COMPACT - 25W motor delivers up to 6.66 GPM flow with a sleek design that hides effortlessly in any setup.
EFFORTLESS MAINTENANCE - Tool-free disassembly and easy cleaning keep your pump running smoothly with minimal hassle.
CUSTOMIZABLE WATER DISPLAY - Three interchangeable nozzles and an adjustable knob let you tailor your fountain’s aesthetic vibe.
VERSATILE OUTDOOR INDOOR USE - Ideal for aquariums, ponds, hydroponics, and backyard fountains—elevate any water feature.

The CWKJ 400GPH Submersible Fountain Pump combines a powerful 25W motor with ultra-quiet operation and adjustable water pressure. Compact and durable, it includes three nozzle options and a 6.5ft power cord, making it perfect for aquariums, ponds, hydroponics, and outdoor fountains. Easy to install and maintain, it delivers up to 6.66 gallons per minute with a maximum lift height of 6.56 feet.

Specifications

ASIN	B07FVPLD99
Best Sellers Rank	#94,647 in Pet Supplies ( See Top 100 in Pet Supplies ) #975 in Water Pumps (Pet Supplies)
Brand	CWKJ
Brand Name	CWKJ
Colour	Black
Customer Reviews	4.2 out of 5 stars 9,083 Reviews
Flow Rate	6.66 Gallons Per Minute
Item Dimensions L x W x H	5.8L x 7.1W x 8.1H Centimeters
Item Weight	5.6 Ounces
Manufacturer	CWKJ
Material	Copper, Rubber , Stainless Steel
Material Type	Copper, Rubber, Stainless Steel
Maximum Lifting Height	6.56 Feet
Model Number	26-011
Power Source	Corded Electric
Product Dimensions	5.8L x 7.1W x 8.1H Centimeters
Product Style	Submersible
Style	Submersible
UPC	755101403129
Voltage	110 Volts

Reviews

A**A

Reliable, Quiet, and Packs a Punch for the Price

16.07.2025

A**Z

Puissante et silencieuse, parfaite pour ma fontaine

J’ai installé cette pompe CWKJ dans ma fontaine, et je suis vraiment satisfait du résultat. Elle est assez puissante pour assurer un bon débit d’eau tout en restant très silencieuse, ce qui est essentiel pour profiter pleinement de l’ambiance apaisante. Facile à installer et robuste, elle fonctionne parfaitement depuis plusieurs semaines sans aucun souci. C’est un excellent achat pour tous ceux qui cherchent une pompe fiable et efficace.

9.08.2025

B**I

Pompe à fontaine

Super pour ma fontaine de jardin ....pas de bruit ...elle fonctionne très bien

22.09.2023

B**R

Powerful, Quiet, and Reliable Fountain Pump!

20.07.2025

P**N

Worked for two summers

5.09.2025

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