Needle Valve For CO2 Regulator

$32.99 $25.49 Save: $7.50 (22%)

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This item is in stock in our East and West Coast warehouses

CO3151

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This Needle Valve is most suitable for Aquarium use. It can provide down to 10 bubbles of CO2 / minute consistently (at 0 pressure). Fits most CO2 Regulator Kits on the market. Inlet - Male Threaded NPT 1/8" (measures 1/4" OD physically) / Outlet - Hose Barb 1/8" (or 4/6 mm ID/OD tubing). This is the valve supplied with our Econo CO2 regulators.

NOTE: CO2 gas is extremely compressible, and therefore expandable, relative to other gases. CO2 gas is typically stored under very high pressure. A needle or metering valve is not designed to drop the pressure from your CO2 regulator down to a working pressure. This is the job of the CO2 regulator itself. The needle valve`s sole purpose is to regulate CO2 flow precisely. Equipping your existing CO2 regulator with a needle or metering valve may not provide you with adequate fine-adjustment for a calcium reactor. These valves are fragile and be easily damaged if not hooked up to the proper regulator. Our Deluxe CO2 Systems already include a Precision Needle Valve which enable as low 6 bubbles / minute (NOT second).



**Variations of this product can be found in many online stores. The version we carry is of the highest quality. Although this item is eligible for price matching under our Low Price Guarantee, please be certain the product you want to price match is the same make and model.

Accessories for Needle Valve For CO2 Regulator


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7 Reviewers (86%) would recommend this

Overall Rating:

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“Great needle valve”
5.0

its super compact and ease to use. I got it to attach to my redsea regulator. Needed some tape around the threading to make an airtight connection. Other than that the valve has been working great. I can accurately control the flow. Currently using it on a 8.5 gal tank so need a slower bubble ra...Read More

  • 1
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“Needle valve”
1.0

Needle valve is not consistent and I find myself adjusting it continuously.

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“Still super sensitive”
3.0

I was hoping this would be VERY granular for adjustment, but in the end it's still extremely sensitive. Trying to adjust from 40 bubbles a minute to 30 is quite difficult, and anything more granular than a 10 bbl/min adjustment seems unlikely. I'm still glad I got it as I do have more control ...Read More

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“Not Bad”
5.0

Works as describe with minimal effort to install. I did find the packaging a little substandard but the needle valve is very precise.

  • 1
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“Great Replacement!!”
5.0

Seemed a bit too sensitive at first, but once I had it locked at the proper adjustment, the volume hasn't deviated at all. Compared to the factory needle on my regulator, this unit is a treasure!!

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“Needle Valve”
4.0

The valve takes a little fine adjusting. After that it maintains-so all in all it's a very good valve. This is my first needle valve so I can not compare to other valves.

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“wonderful device”
5.0

Works wonderfully, I highly recommend it. Great price too.

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Overall, others give this:

7 Reviewers (86%) would recommend this

Overall Rating:

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3  Star
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2  Star
 0
1  Star
 1