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Grenco Science

G Pen Connect & Grav Clear Umbrella

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Enjoy a fine balance of cloud density and flavor from the G Pen Connect x GRAV® Clear Umbrella Perc. The G Pen Connect eliminates the need for a torch and gets to your chosen temperature in under 5 seconds for sessions that never miss a beat. A ceramic heating chamber brings out the flavor of your concentrate, and the patented reverse airflow technology makes for a low draw resistance. Users can choose from three voltages to either taste more of their material, manufacture large results, or have a little of both.

The G Pen Connect houses a 850mAh battery that is easily connected to the male glass adapter by way of a magnetic connection. A spring-loaded carb release button allows for easy clearance of your chamber due to quickly initiating airflow. The Connect device can connect to standard and 14mm female glass-on-glass connection.

Helping out the G Pen Connect is the GRAV® Clear Umbrella Perc. This elegant piece in clear glass features an umbrella perc that diffuses through water to give you cooler, smoother hits. It includes a 14mm female domeless nail made of heat tolerant quartz, so all you need to add is about 1.5" of water and you're ready to go. The Umbrella Perc is simple, smart, and reliable, and definitely a piece you'll want by your side, rain or shine. The labels for this piece come in assorted colors. You may receive black, white, blue, green, red, purple, yellow, orange, or etch.


  • 1x G Pen Connect Battery
  • 1x G Pen Connect Tank
  • 1x G Pen Connect Housing
  • 1x G Pen Connect Male Glass Adapter (14mm)
  • 1x G Pen Connect Female Glass Adapter(14mm)
  • 1x Grav Clear Umbrella
  • 1x 14mm female domeless nail