Daily Pen (formally known as Zen Tanks) are a full spectrum C02 extracted cartridge. One of the only solventless, all organic cartridges available on the Canadian market today. Customers looking for the most healthy option who also want the classic full spectrum taste and high turn to Zen Daily Tanks. They are available in both 1:1 CDB to THC and Full CBD (no THC) cart variants. We also offer the full spectrum THC carts here.