I’m on the hunt for a proper brush to clean 5000ml flasks. I’ve found a few listed on laboratory supply sites, but they don’t seem to sell to the public. I found one that looks perfect directly from the manufacturer, Justman, but the minimum order quantity is three. They have both a 21” and 30” model. Does anyone know where I can find something like the brush linked below? If not, any takers on splitting an order of three?
Long Flask Brush
Long Flask Brush