Compact CO2 Injector.  From the description it seems like you get the injector only, so you need your own ball lock or pin lock QD.

Use to help you dispense homebrew on the go.  I have a similar injector, although maybe not identical.  To serve been you generally just need a couple of taps to keep the pressure at an acceptable level.  Adding small amounts of CO2 as needed can help you save on CO2.

Update: Since this post was published the price, availability or promotion has changed.  Check the product page for current description, price and availability.  Also: Today’s Deals on Amazon

Compact CO2 Injector Only

Also: Kegerator Tips & Gear | Keg Repair Part #s | 5 Recent Keg Finds | Portable Draft Serving Options

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