Saber Tactical Karma EQ Bottle Adapter Kit Precision-machined main body Includes O-rings, X-washers (spares for both), Foster fitting plunger assembly, thread protector collar Installation requires only open-end wrenches, PTFE tape, hex wrench Foster fitting can be installed in different orientations Compatible with carbon fiber bottles, including 300cc, 480cc, 580cc, and 700cc Compatible with the Karma EQ Be sure to match the fill pressure to the bottle's pressure rating