Dear Sir or Madam,I am interested in the style of clamp shown in the bottom left hand corner of your web pic. We use a 3/8 or 20 mm hose for all of the coffee machines (commercial) that we import. Could you please let me know if you have 20 mm(3/8). What is your minimum order number and please quote price including shipping.Many thanksDavid WeightEspresso Company Australia