Use the table below to choose the Vertical Unit that meets your requirements: Product Glass plate size   (W x L, cm) Number of gels that can be run  per unit Gel thicknesses (mm) Number of samples/gel Heat exchanger included Compatible  caster SE 660 18 x 24 18 x 16 18 x 8 1 to 4 0.75, 1.0, 1.5 < 28 yes SE6015 SE 600 Chroma 18 x 16 1 to 4 0.75, 1.0, 1.5 < 28 yes SE6015, SE615 &SE675 SE 600 18 x 16 1 to 4 0.75, 1.0, 1.5 < 28 yes SE6015, SE615 & SE675 SE 640 18 x 8 1 to 4 0.75, 1.0, 1.5 < 28 no SE6015 SE 410 18 x 24 1 to 2 0.75, 1.0, 1.5 < 28 no SE6015 SE 400 18 x 16 1 to 2 0.75, 1.0, 1.5 < 28 no SE6015, SE615 & SE675 SE 300 miniVE 10 x 10.5 10 x 8 1 to 2 0.75, 1.0, 1.5 < 18 no SE245 & SE235   SE 250 10 x 8 1 to 2 0.75, 1.0, 1.5 < 18 yes SE215, SE245 & SE275 SE 260 10 x 10.5 10 x 8 1 to 2 0.75, 1.0, 1.5 < 18 yes SE245 & SE235