Compatible with 510 thread batteries only that is sold separately. When it comes down to the legacy and its name, this 1g Granddaddy Purple vape cartridge from Kingpen stands out more than any other. Granddaddy Purple (or GDP) is a famous indica cross of Purple Urkle and Big Bud with a complex aroma of sweet berries and grape and tasting notes of pine, fruit and sweet grape. It has a potent effect that is clearly detectable in both mind and body, delivering a fusion of cerebral euphoria and physical relaxation. Kingpen offers highly potent, lab tested, premium high potency distillate cartridges that are BHO extracted, cold-pressed, and filtered to create the highest distillate standard.