Proline Curve Dispensers The Proline Curve dispensers are for use in a variety of workplace environments. These dispensers are universal, in the case that they can be used with a number of the SCJ Professional product lines. This dispenser line features two different sizes: The small Proline Curve dispensers are for the 1 liter cartridges (available in a number of different colors and designs). The medium Proline Curve dispensers are made for the 2 liter cartridges (available in black and white). To be used with all 1 Liter Deb Stoko cartridges