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Discount Codes & Deals

Grenco Science is the brand behind the famous G Pen vaporizer range; considered to be some of the best portable vaporizers in the world today. They offer a wide range of premium dry herb, concentrate and e-liquid vaporizers to fit everyones budget - all with the same iconic blacked out design. If you want a real G Pen vaporizer, it’s probably not wise to buy it somewhere like Amazon, but instead at Grenco Science’s official web store. We're excited to be teamed up with Grenco Science directly to bring you exclusive discount codes and deals that can't be found anywhere else online! So check out the latest deals we've added below and save on one of the strongest vaporier brands in the game!

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Latest G Pen Coupon Codes & Deals

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EXPIRED
-20%

Save 20% on almost all items at GPen.com when you enter the following coupon code at the checkout.... Read More

Save 20% on almost all items at GPen.com when you enter the following coupon code at the checkout. Works on 99% of vapes and accessories!

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  • USA & Canada
  • Expiry date unknown
  • Vaporizers
  • 100% Success
EXPIRED
FREE

Get an additional 2 FREE Tanks with your G Pen Connect when you order at the official G Pen store... Read More

Get an additional 2 FREE Tanks with your G Pen Connect when you order at the official G Pen store this month. Swap them over during sticky sessions!

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EXPIRED
-$60

Get $385 worth of G Pen products (1 herb vape, 1 concentrate vape, plus accessories) for just $150... Read More

Get $385 worth of G Pen products (1 herb vape, 1 concentrate vape, plus accessories) for just $150 with a G Pen Mystery Box at the official G Pen store!

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  • USA & Canada
  • Expiry date unknown
  • Vaporizers
  • 100% Success
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-30%

Not only are all Cookies CBD Cartridges on sale with 30% off at the official G Pen store right now... Read More

Not only are all Cookies CBD Cartridges on sale with 30% off at the official G Pen store right now – they also each come with a FREE Gio Battery while stocks last!

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  • USA & Canada
  • Expiry date unknown
  • CBD
  • 100% Success
EXPIRED
-10%

Enter your email and phone number into the popup at the official G Pen store and they will send you... Read More

Enter your email and phone number into the popup at the official G Pen store and they will send you a text with a 10% off coupon code instantly for your next order!

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  • USA & Canada
  • Expiry date unknown
  • Vaporizers
  • 100% Success
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-20%

The all-in-one portable vape with water filtration - Get 20% off the G Pen Roam vaporizer at the... Read More

The all-in-one portable vape with water filtration – Get 20% off the G Pen Roam vaporizer at the official G Pen store for a limited time only.

Expiry Date Unknown

Expiry date unknown
  • USA & Canada
  • Expiry date unknown
  • Vaporizers
  • 100% Success
EXPIRED
-40%

This vape comes with everything - except the high price tag. Save 40% on the multifunctional G Pen... Read More

This vape comes with everything – except the high price tag. Save 40% on the multifunctional G Pen Roam for a limited time only at the G Pen store.

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-15%

Tranform your old bong into a portable electric dab rig. Get 15% off the G Pen Connect for the rest... Read More

Tranform your old bong into a portable electric dab rig. Get 15% off the G Pen Connect for the rest of this month only at the official G Pen store.

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-28%

Pick up the G Pen Dash for just $49.95 (28% off) in the official Grenco Science store's Holiday... Read More

Pick up the G Pen Dash for just $49.95 (28% off) in the official Grenco Science store’s Holiday Sale for the rest of this month only.

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-50%

The entire G Pen catalog just went on sale with 50% off everything in the official G Pen store's... Read More

The entire G Pen catalog just went on sale with 50% off everything in the official G Pen store’s Holiday Sale. Buy direct and get it for less!

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-60%

The official G Pen store is the only place you need to be shopping for a G Pen Vaporizer this Black... Read More

The official G Pen store is the only place you need to be shopping for a G Pen Vaporizer this Black Friday – They’ve got 60% off everything with new deals every day!

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-42%

Grab Grenco Science's best selling G Pen Elite Vaporizer for only $69.95 (42% off) in the official... Read More

Grab Grenco Science’s best selling G Pen Elite Vaporizer for only $69.95 (42% off) in the official G Pen Store’s Black Friday Sale this week only.

Expiry Date Unknown

Expiry date unknown
  • USA & Canada
  • Expiry date unknown
  • Vaporizers
  • 100% Success
F.A.Q For G Pen Coupon Codes & Deals
How many G Pen discounts do you currently have listed?

We have over 71 G Pen discounts in total listed, including 3 coupon codes and 31 money saving offers!

What's the most I can save at G Pen right now?

You can currently save up to 20% with our G Pen coupon codes and deals!

Do you offer exclusive G Pen coupon codes and deals?

Since we're the leading cannabis discount site, you'll definitely find more G Pen coupon codes here than anywhere else online!