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Grenco Science
Grenco Science

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G Pen Connect by Grenco Science is a revolutionary vaporizer for concentrates consumption that heats to temperature within five-seconds of activation…
G Pen Elite by Grenco Science is a portable convection vaporizer that features a LED display with temperature control, battery life…
G Pen Gio Vaporizer Battery G Pen Gio Vaporizer battery for liquids is designed to be used with the G…
G Pen Nova by Grenco Science  has the newest design for vaping concentrates. The Nova  is designed to minimize clogging…