Work great!

Picked these up to use on my Ecosphere set up to improve gas exchange throughout my grow process. The air quality inside the tent smells fresher without reducing my humidity or affecting temperature in a meaningful way.



I love being able to just buy what I need and trust that Midwest has done the homework for me :)

These things are great! They are thick and durable and they stick like grim death.

Great

Great value and fast shipping..