Click to Verify - This site chose VeriSign SSL for secure e-commerce and confidential communications.
Security Seal
Marine Depot Live Chat Support
Pet supplies, Pet products, and Pet Accessories for your dogs, cats, birds, fish, reptiles or small pets. Pet experts are available to help you.
New Customer? Register | Sign In
Expires in 00:00:00
In-Stock! EcoTech Radion XR15w PRO LED Light
0 items
Your cart is currently empty.
View Cart Checkout
Aquarium Supplies
Home » Saltwater Aquarium Supplies  » CO2 Products  » CO2 Regulators  » Replacement Parts  »  Needle Valve For CO2 Regulator
Needle Valve For CO2 Regulator

Needle Valve For CO2 Regulator

In Stock: Order by 6PM EST for same-day shipping (M-F)
Item #:
MSRP: $32.99
You Save: $8.50 (25%)
Marine Depot 60-day Returns
At Marine Depot, we stand behind our products. That is why we offer a 60-day return period: one of the best in the industry! Learn More

Needle Valve For CO2 Regulator Information

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.

+ Display More

Needle Valve For CO2 Regulator Reviews

Average Rating
(7 reviews)
Sort Reviews By:

Great needle valve

Reviewers Rating Excellent!

Posted: 7/4/2014 from Seattle, WA UNITED STATES
5.0 5
Experience Level: Expert

Comments: 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 rate~1 bubble/ sec. Will definitely buy it again, if needed.

Did you find this review helpful? Yes No

Needle valve

Reviewers Rating Unsatisfactory

Posted: 4/7/2010 from CUDAHY, WI UNITED STATES
1.0 5
Experience Level: Intermediate

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

1 of 1 People found this review helpful, did you? Yes No

Still super sensitive

Reviewers Rating Average

Posted: 10/15/2009 from SUSSEX, WI UNITED STATES
3.0 5
Experience Level: Intermediate

Comments: 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 than I previously did, but in general it wasn't exactly what I had hoped for.

4 of 4 People found this review helpful, did you? Yes No

Great Replacement!!

Reviewers Rating Excellent!

Posted: 5/2/2009 from N UXBRIDGE, MA UNITED STATES
5.0 5
Experience Level: Intermediate

Comments: 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!!

1 of 1 People found this review helpful, did you? Yes No

Not Bad

Reviewers Rating Excellent!

Posted: 2/25/2009 from PLANO, TX UNITED STATES
5.0 5
Experience Level: Intermediate

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

Did you find this review helpful? Yes No

Needle Valve

Reviewers Rating Great

Posted: 10/9/2008 from LINCOLN PARK, MI UNITED STATES
4.0 5
Experience Level: Intermediate

Comments: 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.

1 of 1 People found this review helpful, did you? Yes No

wonderful device

Reviewers Rating Excellent!

Posted: 11/29/2007 from YORKTOWN HEIGHTS, NY UNITED ST
5.0 5
Experience Level: Intermediate

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

1 of 2 People found this review helpful, did you? Yes No

Needle Valve For CO2 Regulator Window Navigation Prev Next Zoom Close
We value your opinion & experience
Thank you for taking the time to review our products!

This is a Product Review for: Needle Valve For CO2 Regulator

First tell us about yourself.

Name to display on the review: Location (ex: Anaheim, CA):
Your experience level:

How would you rate this product?

Review Title:

Write your review:
(Please focus on product quality and performance, maximum 2000 characters)

This item is temporarily unavailable but will be back in stock soon.

Item #
Click the Add To Cart button below if you'd like to reserve this item today. Any other items included in your order will be immediately processed and shipped. We will ship this item separately as soon as it arrives. We will not charge you for this item until it ships and you will incur no additional shipping charges.

Enter your email address in the field below and click the Notify Me button if you'd like us to send you an email when this item becomes available. Although you will be immediately notified when we have stock on hand, we will not reserve any units for you; you must return to our website and place an order.

Your Email:
Just enter your email address below and we'll let you know when the product you are looking for becomes available!

Item Code:
Your Email:
If you find a product we sell for a lower price at another online store, we will match their price—today and up to 14 days after you’ve purchased the item!

Enter the price, shipping cost and website address where you found the lower price. Then click the "Add to Cart" button. We will review the lower price while processing your order and make any necessary reductions before your order ships. Some restrictions apply. See Terms & Conditions.

Sorry! While there is no limit to the number of items we'll price match in an order, our online system will only accept one. Please call us at 1-800-566-FISH (3474) and we’ll happily price match additional items for you.

Price *
Shipping Cost *
Competitor's Website *

Sharing products with friends and family couldn’t be easier!

Just complete the fields below to send your friend or family member a personalized email message featuring the product of your choice.

Your Name *

Friend's Name *

Friend's Email *

Personal Message

Add to Wish List
Select Wish List:
Comments (up to 200 characters):
Quantity Desired:
Quantity Received:
Email Specials
Subscribe to our newsletter feed.
Newsletter Tips & Tricks! New Products!
Discounts & Promos!
July 21, 2014
"Excellent service and quick delivery. Will continue to do business with Marine Depot."

July 19, 2014
"I appreciate Marine Depot's price matching. Keeps me coming back to them with my business."

July 17, 2014
"Support quickly answered questions I had and the product was quickly shipped. I would definitely order from them again."