Will a 3/16 ID tube work with this?

The nozzle of this Mini Air Pump was 4.2mm (±0.3mm) in diameter, and it will work perfectly with your 3/16 inch ID tube.

Is it possible to run 3 of these with 4 AA batteries?

We modified the project in the youtube video to have LED's in series with each pump for each flavor. We had a voltage drop of ~6V across the pump and ~3V across the LED.We tried a variety of batteries and configurations to demonstrate voltage and amperage, from 9V to a 6V lantern battery. I think we ultimately went with two 9V in parallel plus a pair of D cells in series to give 12 V for each pump/LED circuit. Fun project, my daughter gave it to a friend for her 12th birthday. We failed one LED (shorted), we left out the current limiting resistor thinking the motor would help, but I suppose it has an inrush. For what it's worth, red and green LEDs seem more robust than yellow.This device won't keep the pop cold or from going flat, but as a learning experience these pumps are well worth the money.

How long is its life expectancy

Hello friends, the life of this product is 50,000Times

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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DIMINUS DC 6V Mini Air Pump Motor, DIY and Replacement Accessories, Best for Aquarium Tank Oxygen Circulate (4 Pack)

DIMINUS DC 6V Mini Air Pump Motor, DIY and Replacement Accessories, Best for Aquarium Tank Oxygen Circulate (4 Pack)

Product ID: 41578500

Details

Air Flow Capacity
2 Liters Per
Brand
DIMINUS
Color
Black Blue Red
Item Weight
240 Grams
Power Source
Battery

⚡6V DC energy-saving power

💨2L/min high airflow rate

🔇Ultra-quiet operation <52dB

Description

🐠 Pump up your aquarium’s vibe with silent, powerful airflow!

ENERGY SMART DESIGN - Runs efficiently at DC 6V with less than 300mA current draw.
DURABILITY THAT LASTS - Built for 50,000 cycles with minimal vibration and wear.
DIY REPLACEMENT READY - Perfect for aquarium oxygen circulation or custom projects with 4-pack convenience.
EFFORTLESS OXYGEN BOOST - Delivers a steady 2L/min airflow to keep your aquarium thriving.
WHISPER QUIET PERFORMANCE - Operates below 52dB, ensuring peaceful aquatic environments.

The DIMINUS DC 6V Mini Air Pump Motor is a compact, energy-efficient device delivering over 2 liters per minute of airflow at pressures exceeding 500mmHg. Designed for quiet operation under 52dB and a long lifespan of 50,000 cycles, this 4-pack is ideal for aquarium oxygen circulation or DIY projects, backed by an 18-month warranty.

Specifications

ASIN	B06Y2CXZ67
Air Flow Capacity	2 Liters Per Minute
Best Sellers Rank	#571,610 in Pet Supplies ( See Top 100 in Pet Supplies ) #3,373 in Aquarium Air Pump Accessories
Brand	DIMINUS
Brand Name	DIMINUS
Color	Black, Blue, Red, Silver, White
Customer Reviews	4.3 out of 5 stars 89 Reviews
Item Weight	240 Grams
Manufacturer	DIMINUS
Manufacturer Part Number	DIMINUS
Maximum Pressure	500 Millimeters of Mercury
Model Number	DS002A
Operation Mode	Automatic
Power Source	Battery Powered
UPC	730440705578

Reviews

I**Z

Great for "Home Made Soda Machine"

Make sure to create a nice and tight seal and they should create a surprisingly powerful stream.

7.05.2021

D**T

Barely has any power.

Doesn't provide much air output, barely enough to pump water out of a bottle.

10.11.2018

R**C

Not as powerful as I thought but worked for my project.

These worked for my project. Not as powerful as I thought but they worked out fine.

4.09.2020

J**N

Product specifications

The following speculations 1) Life cycle of how many times pump can turn on. 2) inflation rate: ___ L/min 3) Max pressure ____ KPa 4) Min pressure ____ kPa 5) Max current ____ A 6) sound rating ____ dB 7) Power rating ____ W

27.03.2023

A**R

Great

Great product and quick shipment

1.10.2017

B**R

I thought they'd been stronger, but they worked

Crafting

30.04.2021

D**S

DIY Soda Machine

I bought these for a diy soda machine. They did not put out enough pressure running at 6 volts. I hooked them up to 12 volts and they worked perfect. They don't run a long time so I doubt it will hurt them. Can't beat the price.

2.03.2018

G**N

Five Stars

Worked just as I planned for them to.

19.01.2018

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