I don't know the specifics. I do know that it's very simple to use. I just hook my beer gun into my CO2 from my regulator and then hook it into the liquid out on my keg. You can them use the beer gun to purge the bottle with CO2 gas by pressing it one way, then press it another way to empty the beer from the keg into the purged bottle.
My semi-regularly updated beer blog: PremiumBitter
: Baltic Porter | WLP001
: Chocolate-Spearmint Winter Warmer | WLP028
: Spokane Falls Fresh Hop Ale (IPA) | WLP001/WLP028 (Amarillo/Columbus dry hop)
Yellow Marmot Ale (Golden Ale) | WLP001
Yellow Marmot Ale (Golden Ale) | WLP028
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