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These immersion heaters – the D3P, D3F, D3S, and D3T series – are derated to 18 W/in² for use in solutions with low thermal conductivity (oils, viscous liquids, etc.).

Select a heater below by wattage and sheath material to go to an ordering page, where you can choose voltage and other options. If you don't know what sheath material or watt density you need, you can use our Sheath Material Selector.

If you have any questions, feel free to call us at (866) 685-4443, email us at, or send in one of our contact forms.

Steel 304 Stainless 316 Stainless Titanium
1,500 W K400240 K400298 K400318 K400338
3,000 W K400242 K400300 K400320 K400340
4,500 W K400244 K400302 K400322 K400342
6,000 W K400246 K400304 K400324 K400344
7,500 W K400248 K400306 K400326 K400346
9,000 W K400250 K400308 K400328 K400348
12,000 W K400252 K400310 K400330 K400350
13,500 W K400254 K400312 K400332 K400352
15,000 W K400256 K400314 K400334 K400354
18,000 W K400258 K400316 K400336 K400356

You can also browse individual heaters by selecting a sheath material: