M 2-Pack - Natural CO2 Generator for Grow Tents & Greenhouses | Value Bundle for Double Coverage | Boosts Plant Growth, Yield & Harvest Speed | Organic Hydroponic Supplement | Maintenance-Free

Works like a charm

Amazon keeps intentionally mis-delivering all my it items this time there targeting my co2. Best co2 in the game if you know what you are doing with it. Real big shout out to the owner of co2 bag m you are incredible! Sponsor me I will show how good your product is I am in love!! Great work

I dont think these work at all. My CO2 levels never went up after putting these up. Once I started suspecting that they don't work I put the sensor right next to the bag that has 6 holes poked through it and no change at all in CO2 levels. So waste of money if you ask me

Works, brings up yield and C02 levels, but is an expensive way to do it.

Plants love it

One of those things I will most likely buy for a simple fact my indoor plants need more CO2... however price is up there, and bag quality isnt great. I had a leak on the bottom exactly 1 month after hanging it inside my tent. Good thing it wasnt directly over the plants itself and mlre in the corner. So quality isnt all there. I dont have ways to measure CO2 level, but I have noticed a difference in my yield after using this as well.. HOWEVER I cant say its because of this product alone. I have changed alot of things in my grow so it can be many factors, like better light, better feeding methods and schedule, better nutes, better soil trace minerals bio char, azomite etc etc. Im sure CO2 played its small role in it as well. So after all the investment goin on, whats another 20$ if theres a chance it will increase yield and be worth the extra nug? I just wish was made better, n leak proof if im paying 20$. 13 would be great 15 reasonable. 20 is up there

For the value for money this is easily an essential item for indoor/grow rent growers. Easy and simple for anyone who hasn’t used a product like this before in their growing, no leaks if following the instructions, and plant growth is very noticeable from a before using - after using this product. I subscribed right away to get this item once a month. From an experienced master grower; it’s essential for indoor and grow tent growers on any experience level.

I added this to my grow tent and to be honest I'm not 100% sure it helped but I can say they're bigger now so maybe 😂

super au top

Boh bags were faulty and smelling like ammonia. Couldn't use them but the shop was great handling the return. I'll try again.

Don't work at all in my 4x4 grow tent , never got above 500 PPM with XL 2 bags

24.7° C y 70% en 3 dias se ha consumido la 1/4 parte del polvo y produce mas amoniaco que CO2. Solo ha habido unos dos o tres pikos de 426 ppm y en cuanto pongo el ventilador se queda siempre en 358 y ya no sube mas aunque apague el vent. Y las plantas ni se han enterao. Dinero malgastado.

À voir avec le temps.. Je peux pas noter mieux