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 Fountain Water Pump, 2000L/H, with 7.2ft High Lift, 3 Nozzles for Aquarium, Fish Tank, Pond, Hydroponics, Statuary, Pool

Product ID: 128938920

Details

Brand
GROWNEER
Color
Black
Item Weight
1.2 pounds
Material
Plastic
Maximum Flow Rate
33 liters per
Maximum Lifting Height
7.2 feet

⚡30W energy-efficient motor

💧550 GPH max flow

📏7.2 ft max lift height

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Description

💦 Elevate your water game—flow, power, and style in one sleek pump!

POWERFUL EFFICIENT - 30W motor delivers a robust 550 GPH flow while keeping energy use low—eco-smart meets high performance.
PRECISION FLOW CONTROL - Easily dial in your perfect water pressure with the adjustable knob—customize your aquatic vibe.
MULTI ENVIRONMENT READY - Perfect for aquariums, fountains, hydroponics, and ponds—boost water circulation and oxygenation for thriving aquatic life.
VERSATILE NOZZLE OPTIONS - Three threaded nozzles (0.51", 0.62", 0.75") let you tailor water flow for any aquarium, pond, or hydroponic setup.
SECURE FLEXIBLE INSTALLATION - Four strong suction cups plus a 5.9ft cord ensure stable, hassle-free placement anywhere you want.

The GROWNEER 550GPH Submersible Pump combines a powerful 30W motor with adjustable flow control and a 7.2 ft lift height, making it ideal for aquariums, ponds, and hydroponic systems. Featuring three nozzle sizes and secure suction cup mounting, it offers versatile, energy-efficient water circulation to keep your aquatic environment vibrant and healthy.

Specifications

ASIN	B07MDBYTLS
Best Sellers Rank	#1,943 in Pet Supplies ( See Top 100 in Pet Supplies ) #3 in Aquarium Water Pumps
Brand Name	GROWNEER
Color	Black
Customer Reviews	4.3 4.3 out of 5 stars (11,792)
Flow Rate	33 liters per minute
Horsepower	30 watts
Included Components	1 x 0.51" Nozzle, 1 x 0.62" Nozzle, 1 x 0.75" Nozzle, 1 x 550GPH Water Pump
Item Dimensions L x W x H	3.3"L x 2.2"W x 2.7"H
Item Type Name	Submersible Pump
Item Weight	1.2 pounds
Manufacturer	GROWNEER
Manufacturer Part Number	WP550-3
Material Type	Plastic
Maximum Lifting Height	7.2 feet
Model Number	WP550-3
Power Source	ac
Product Style	Submersible
Specific Uses For Product	Aquarium, Fountain, Outside，inside, Pond
UPC	653334368010
Unit Count	1 Count
Voltage	110 volts

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44212CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered 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 Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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