is there a flow chart for differences in head pressure?

the smaller the restriction, the harder the pump will work thus it will overheat. These are not magnetic drives and will not adapt to flow reduction like a brew (aka Riptide) pump. Keep an eye on the heat generated (run in cooler or 5 gal bucket) w/return flow and take water temps over an hour or two. Just restricting the flow will NOT push farther but may make it overheat, use more amps, and then burnout (see user pics of fried extension cords)

What is the pipe thread size of the discharge side of the pump?

It’s actually 0.75 inch thread. I just measured.

Does this have auto shut off?

Auto shutoff for what purpose? Two possibilities would be: A timer would switch it ff and on at prearranged times. For a malfunction due to no water going through, you will ideally want to power it through a ground fault interrupt circuit so in the event the water source accidentally runs dry the pump will not burn out.

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GROWNEER 550GPH Submersible Pump 30W Ultra Quiet Fountain Water Pump, 2000L/H, with 7.2ft High Lift, 3 Nozzles for Aquarium, Fish Tank, Pond, Hydroponics, Statuary

GROWNEER 550GPH Submersible Pump 30W Ultra Quiet Fountain Water Pump, 2000L/H, with 7.2ft High Lift, 3 Nozzles for Aquarium, Fish Tank, Pond, Hydroponics, Statuary

Product ID: 401688604

Details

Brand
GROWNEER
Colour
Black
Material
Plastic
Style
Fountain
Product Dimensions
8.4L x 5.6W x
Power Source
Corded

⚡30W energy-saving motor

💧550 GPH max flow

📏7.2 ft max lift height

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VT22586

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💦 Elevate your aquatic space with power, precision, and style!

POWER MEETS EFFICIENCY - 30W high-efficiency motor delivers robust 550 GPH flow while keeping energy costs low.
PRECISION FLOW CONTROL - Adjust water pressure effortlessly with the built-in control knob for the perfect aquatic ambiance.
MULTI ENVIRONMENT READY - Ideal for aquariums, hydroponics, fountains, and ponds—boost water circulation and oxygenation for thriving aquatic life.
VERSATILE NOZZLE OPTIONS - Three detachable nozzles (0.51"/0.62"/0.75") let you customize water flow to suit any aquarium or pond setup.
SECURE FLEXIBLE INSTALLATION - Four strong suction cups and a 5.9ft power cord ensure stable, hassle-free placement anywhere.

The GROWNEER 550GPH Submersible Pump is a compact, energy-efficient 30W water pump designed for aquariums, ponds, and hydroponic systems. Featuring a maximum flow rate of 550 gallons per hour and a lift height of 7.2 feet, it offers customizable water flow through three interchangeable nozzles. Equipped with strong suction cups and a long power cord, it ensures easy, secure installation and reliable performance to keep your aquatic environment vibrant and oxygenated.

Specifications

ASIN	B07MDBYTLS
Best Sellers Rank	#71,268 in Pet Supplies ( See Top 100 in Pet Supplies ) #765 in Water Pumps (Pet Supplies)
Brand	GROWNEER
Brand Name	GROWNEER
Colour	Black
Customer Reviews	4.3 out of 5 stars 11,059 Reviews
Flow Rate	33 Liters Per Minute
Horsepower	30 Watts
Item Dimensions L x W x H	8.4L x 5.6W x 6.9H Centimeters
Item Weight	19 Ounces
Manufacturer	GROWNEER
Manufacturer Part Number	WP550-3
Material	Plastic
Material Type	Plastic
Maximum Lifting Height	7.2 Feet
Model Number	WP550-3
Power Source	Corded Electric
Product Dimensions	8.4L x 5.6W x 6.9H Centimeters
Product Style	Fountain
Specific Uses For Product	Outside，inside
Style	Fountain
UPC	653334368010
Unit Count	1.0 Count
Voltage	110 Volts

Reviews

C**7

5.09.2020

E**S

30.03.2026

C**D

1.05.2026

C**T

16.04.2026

C**E

14.03.2026

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