How many WaterFarm units can the pump power?

The pump can power up to eight WaterFarm units.

Where is the Dual Diaphragm Air Pump manufactured?

The pump is made in South Korea.

What's with the 3D rendered pic? Where's the actual product??

Product looks just like the picture it is a great pump

I know this answer won't help 2 years later, but may help someone else 24800 cc per min is 24.8 lpm

What is the little hole on the top for?

It's the vent hole and could not suck air if it was covered

What is included with this pump?

The pump and power cord are included. You’ll need to buy standard airline tubing separately to supply air to your air stones.

None of the info matters if you don't provide pressure/flow curve. does it deliver anything at 5 psi head? '320 mph/24,800 cc/minute capacities'???

Not sure but it's a great pump for a 4 bucket set up

How many watt and how much does it cost the electric bill to run this pump each month. run 24/7?

8 watts, very inexpensive to run even 24/7

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General Hydroponics

General Hydroponics HGC728040 Dual Diaphragm Air Pump 320 GPH 4 Outlet

Item #:938002

4.7 rating

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PKR 46340

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General Hydroponics' Dual Diaphragm Air Pump is the only air pump in the world that is manufactured exclusively for use with hydroponics systems.

Product Details

Features & Benefits

High output pump
Four adjustable 1/4 outputs
Can power up to eight WaterFarm units
Reliably oxygenates reservoir with air stones
Exclusively for hydroponic use
Made in South Korea

Product Description

General Hydroponics HGC728040 Dual Diaphragm Air Pump 320 GPH 4 Outlet

Overview

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Customer Questions & Answers

Question : Can the Dual Diaphragm Air Pump be used for non-hydroponic systems?
Answer : No, the pump is manufactured exclusively for use with hydroponic systems.
Question : How many WaterFarm units can the pump power?
Answer : The pump can power up to eight WaterFarm units.
Question : Where is the Dual Diaphragm Air Pump manufactured?
Answer : The pump is made in South Korea.
Question : What's with the 3D rendered pic? Where's the actual product??
Answer : Product looks just like the picture it is a great pump
Question : What are the lpm?
Answer : I know this answer won't help 2 years later, but may help someone else 24800 cc per min is 24.8 lpm
Question : Hello could you tell me the watts that this pump will draw please?
Answer : 8 watt
Question : What is the little hole on the top for?
Answer : It's the vent hole and could not suck air if it was covered
Question : What is included with this pump?
Answer : The pump and power cord are included. You’ll need to buy standard airline tubing separately to supply air to your air stones.
Question : None of the info matters if you don't provide pressure/flow curve. does it deliver anything at 5 psi head? '320 mph/24,800 cc/minute capacities'???
Answer : Not sure but it's a great pump for a 4 bucket set up
Question : Does it work with battery or electricity?
Answer : Electric 110/120
Question : How many watt and how much does it cost the electric bill to run this pump each month. run 24/7?
Answer : 8 watts, very inexpensive to run even 24/7
Question : I don't see a gph listed. Can someone tell me what the gph is on this pump?
Answer : 320 gph

Customer Ratings

4.7 out of 5

197 customers ratings

5 star
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4 star
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3 star
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2 star
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General Hydroponics HGC728040 Dual Diaphragm Air Pump 320 GPH 4 Outlet

The General Hydroponics Dual Diaphragm Air Pump is highly recommended for its durability, quietness, and stability. The dual diaphragm system provides a more reliable and safer performance than other air pumps due to the reduced mechanical parts and low electricity usage. The pump generates a high volume of airflow and allows for the fine-tuning of air valves to control the output of air stones for root oxygenation and watering systems. The pump is also very compact and well built making it a high-quality product worth investing in.

Pros

Quiet operation
Reliable and durable dual diaphragm system
High volume of airflow
Fine-tuning of air valves

Cons

Flimsy packaging
Needs larger sizes for bigger hydroponic setups
Insufficient to keep nutrient solution mixed

Important Information

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General Hydroponics HGC728040 Dual Diaphragm Air Pump 320 GPH 4 Outlet

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