BONGRIPPER#1
Active Member
they are co2 generating bags. its a live bacteria in a substrate of some kind that eats off the substrate generating co2 as a bi product. it has a vent patch on it. when you get it, its flat as it starts to work and heat up it swells until its like its going to break but it wont. it last 6 months and generates around 800 ppm million in my tent with two bags. i am switching to co2 tanks when its more convienient, and i have the money, those being the same time,haha. thanks for checkin it out. they make those bags in missoula mt. and i get them at 509 grow in spokane.washington.