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co2-stainless-steel-check-valve-810055291717-32133099487301
co2-stainless-steel-check-valve-810055291717-31825315102789
co2-stainless-steel-check-valve-810055291717-31825315070021
co2-stainless-steel-check-valve-810055291717-31666969837637

CO2 Stainless Steel Check Valve

$8.99
$8.99
Sold out

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  • Designed for pressurized CO2 systems
  • Essential for prevent water flooding out of the aquarium
  • Durable stainless steel construction

This check valve can only be used with a pressurized CO2 cylinder. The air from a regular air pump will not be able to pass through it. A check valve is used within airline tubing to prevent water from siphoning out of an aquarium and into a CO2 regulator. Stainless steel check valves are durable and will hold up over time keeping your equipment safe from leaks. A stainless steel check valve is the best choice when using CO2 as it will hold up better than plastic over a long period of time.

Aquarium Co-Op CO2 CO2 Stainless Steel Check Valve
1

Used for Pressurized CO2 Systems

If you are injecting pressurized CO2 gas into your planted tank using a CO2 regulator and CO2 cylinder, then this check valve is a must. It stops any water from siphoning out of the aquarium through the CO2 line whenever the CO2 regulator turns off or loses power. Save your floors from flooding with this simple check valve.

2

Easy to Install

To install the check valve, simply cut the airline tubing between the CO2 regulator and the CO2 diffuser inside the aquarium. Make the cut outside of the aquarium, just a couple of inches below the rim. Then install the check valve so that the arrow points from the regulator toward the aquarium.

Aquarium Co-Op CO2 CO2 Stainless Steel Check Valve
Aquarium Co-Op CO2 CO2 Stainless Steel Check Valve

CO2 Stainless Steel Check Valve

$8.99
$8.99
Sold out

Customer Reviews

Based on 41 reviews
90%
(37)
0%
(0)
0%
(0)
5%
(2)
5%
(2)
J
Jim P. (Kalispell, MT, US)
SS Check Valve

Excellent product. Will definitely buy again as needed.

A
Andrew E. (Los Angeles, CA, US)
Works

I like the arrow that shows the direction of placement for the CO2 line. Easy to place. It works.

W
William W. (Blountville, TN, US)
Stainless steel CO2 check valve

Working great!

R
R
CO2 check valve

Much better than using the cheap plastic ones when running CO2. Water hasn’t gotten past yet. Going to be buying more for the rest of my tanks.

C
Casey (Saint Paul, MN, US)
Works like a champ!

Works just as you’d expect.

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Frequently Asked Questions

Shipping Policy

We process and ship out 98%+ of our shipments next business day. 

Live plants will ship using an appropriate service and typically arrive in 2 to 5 business days. Transit times do not include weekends, holidays, or weather delays. To avoid delays in the shipping network we recommend ordering live plants on Saturdays and Sundays for a Monday ship out.

Dry goods such as fish food, medication, filtration products, etc. can be ordered any day and will ship the next business day with an appropriate service. Typical shipping times are 1 to 7 business day transit time, depending on delivery location. 

Faster shipping options available at checkout for an additional charge.

Alaska and Hawaii have a $17.99 surcharge. We do not ship to Puerto Rico currently.

90 Day Return Policy

90 Day Return Policy

At Aquarium Co-Op, our goal is to have satisfied customers. We make every effort to inform our customers about how our products work, and what is 
to be expected. We recognize that sometimes a product may not completely
 meet the expectations of a customer. We take pride in having a 
no-hassle 90 day return policy. If you have purchased an item and are not 
satisfied, we will take it back.

To start a return, email our customer service team at shipping@aquariumcoop.com. Please note that the shipping cost of returning an item is not covered by Aquarium Co-Op.


Items being returned may be sent to:
Aquarium Co-Op
Shipping Team
800 Enterprise Dr.
Lexington, KY 40510 

Still Have Questions? Contact Us

Email: Shipping@aquariumcoop.com

Contact form: https://www.aquariumcoop.com/pages/contact-us

Visit our physical store:
Aquarium Co-Op
9661 Firdale Ave
Edmonds, Wa 98020

Send mail to our Warehouse:
Aquarium Co-Op Warehouse
800 Enterprise Drive
Lexington Ky, 40510