Our newest upgrade to our inventory is a brand new brush system. This is 1 unit with the same thickness as our old version. These new brushes wick faster and hold more water for even better wetting of your gummed tape. These should be replaced when you notice the gum build up on your current brushes and the tape get jammed at the site of the brushes and you can no longer clean them easily with very little soap and water. (M2-1)
