FS: CO2 Diffusers, Check valves, CO2 Tubing

I have a large quantity of BRAND NEW CO2 Equipment for your DIY CO2 and Pressurized Systems needs.



1) Brass CO2 Check valves (prevents water from back siphoning from tank) - $10

2) Sweetwater Diffuser stones (creates fine CO2 bubbles) - $3

3) CO2 Proof Tubing Clear or Black (Clippard polyurethane) - $0.60 per foot

All prices include FREE SHIPPING. I have plenty of each item. Just let me know what you need. Feel free to post here or send me a PM.
Thanks!

-John N.

CO2 Tubing vs Regular Tubing
CO2 permeability is greater with silicone and airline tubing according to Coleparmer's Tubing Permeability Chart. For example, Polyurethane is rated at 395, whereras Silicone is rated at 20,132. Lower numbers are better. Polyurethane tubing will not brittle quickly like vinyl and silicone due to CO2 exposure. Better tubing equals to less CO2 lost and eliminates the need replace old airline tubing.

Brass vs Plastic Check Valves
Brass check valves will not degrade and are designed to work with CO2 for multiple years. Plastic check valves aren't made for CO2 use, and will eventually fail, or need replacing. To protect yourself from wet floors, or damage CO2 Regulators it's worth having a Brass Check Valve.

Sweetwater Stones
These sweetwater diffuser stones produce fine, mist like bubbles which increases the ability for CO2 to dissolve in the water. Placed under water current, these bubbles will help plants get the CO2 needed for photosynthesis. Also useful if one needs to oxygenate the water.

-John N.