Langstroth Underfloor Entrance with Varroa Mesh

For Langstroth hives.  This version has a full size varroa mesh and the option to add a varroa inspection board.  We don't use the boards here, we check our varroa loads with an alcohol wash so we thought that we'd offer a slightly lower cost option to not include a board.  The board is made from a thick correx sheet and should only be inserted when actively checking varroa counts.