All 304 stainless low watt density heating element (~110W/square inch) with stainless rods and plug. Plug has 1.5"NPSM thread.
These elements are final sale (no returns) and recommended for heating water only. Purchase 4 and get a fifth one free! We have switched to a slightly lower watt 120V heater (1440W), otherwise they are the same as what we have used in the past. There are two brands we have stock of and they look slightly different. They may have some food-grade machine oil on them and be slightly dusty.