https://eshop.microrama.eu/en/bflock-electrostatic-applicator/582-pack-of-three-250-ml-bflock-50-tanks-2mm-grids.html
Pack of three 250 ml bFlock 50 tanks (2mm grids)
Pack of three removable 250 ml bFlock tanks with 2, 2 and 4 mm grids).
pack ofthreemltanksgrids