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These immersion heaters – the D3LP, D3LF, D3LS, and D3LT 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 K400586 K400606 K400626 K400646
3,000 W K400588 K400608 K400628 K400648
4,500 W K400590 K400610 K400630 K400650
6,000 W K400592 K400612 K400632 K400652
7,500 W K400594 K400614 K400634 K400654
9,000 W K400596 K400616 K400636 K400656
12,000 W K400598 K400618 K400638 K400658
13,500 W K400600 K400620 K400640 K400660
15,000 W K400602 K400622 K400642 K400662
18,000 W K400604 K400624 K400644 K400664

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