| Specifications | 501361 | 501320 | 501387 | 501346 |
| Cross Rod Diameter English | 0.5 in | 0.5 in | 0.5 in | 0.5 in |
| Cross Rod Diameter Metric | 12.5 cm | 12.5 cm | 12.5 cm | 12.5 cm |
| Cross Rod Length English | 21 in | 21 in | 21 in | 21 in |
| Cross Rod Length Metric | 53.3 cm | 53.3 cm | 53.3 cm | 53.3 cm |
| Electical Configuration | 115 VAC, 60 Hz | 115 VAC, 60 Hz | 230 VAC, 50 Hz | 230 VAC, 50 Hz |
| Heating Element Capacity | 250 W | 250 W | 250 W | 250 W |
| Heating Element Length English | 20 in | 20 in | 20 in | 20 in |
| Heating Element Length Metric | 51.5 cm | 51.5 cm | 51.5 cm | 51.5 cm |
| Heating Element Width English | 12 in | 12 in | 12 in | 12 in |
| Heating Element Width Metric | 31 cm | 31 cm | 31 cm | 31 cm |
| Instrument Tray Length English | 12 in | 12 in | 12 in | 12 in |
| Instrument Tray Length Metric | 30 cm | 30 cm | 30 cm | 30 cm |
| Instrument Tray Vertical Rod Diameter English | 0.5 in | 0.5 in | 0.5 in | 0.5 in |
| Instrument Tray Vertical Rod Diameter Metric | 12.5 cm | 12.5 cm | 12.5 cm | 12.5 cm |
| Instrument Tray Vertical Rod Length English | 24 in | 24 in | 24 in | 24 in |
| Instrument Tray Vertical Rod Length Metric | 61 cm | 61 cm | 61 cm | 61 cm |
| Instrument Tray Width English | 9 in | 9 in | 9 in | 9 in |
| Instrument Tray Width Metric | 22.5 cm | 22.5 cm | 22.5 cm | 22.5 cm |