Maxum Cannablend 4 pack 499858
Maxum Cannablend 4 Pack saves you 10% plus free shipping. Cannablend filters have a super long shelf life. Just keep them sealed in plastic and use them when its time for your next filter change. Odor absorbing filters have a finite life span. when they have absorbed all the odor they they should be thrown away and replaced. You cannot wash these filters.