Vape Cartridge - Durban Poison - Introducing Hepworth’s Durban Poison 1g Vape Cartridge: Live from the South African port city of Durban. Our Durban Poison Vape Cartridge is a great strain to help you stay productive throughout a busy day, hiking outdoors, or when you hit writer's block! With Hepworth's Durban Poison Vape Cartridge, you can expect a smooth and flavorful vaping experience, delivering the signature Durban Poison effects in a convenient and portable format.