Viking PB010200 Gas Designer Cooktop Knob PB010200 Viking Gas Designer Cooktop Knob. Any orders over $99.00 will ship for FREE in the U.S. Used in: DGCU105 DGCU155 DGCU165 DGSU100 DGSU160 Any orders over $99.00 will ship for FREE in the U.S. If your unit is not listed here. Or if you need help to determine if this is the part you need. Send us a message. Listing and template services provided by inkFrog Open.