The Planted Tank Forum - View Single Post - How To: Dual Gauge Regulator
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post #7 of (permalink) Old 12-01-2012, 09:51 PM Thread Starter
Algae Grower
Join Date: Jun 2012
Location: Carlsbad, CA
Posts: 25
Originally Posted by kevmo911 View Post
The cylinder is the tank filled with CO2. The knob on the top of that thing is what you'd turn off first.
Is there a cylinder knob on a paintball 20oz tank?
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