3" NPT Screwplug

Immersion Heater Info and Tools (Click to show)

Immersion Heater Configurator

Specify your own built-to-order immersion heater with this tool and get a quote from us in one business day.

How to Select an Immersion Heater

Details on how to specify material and power density to get the longest service life from an immersion heater.

Immersion Heater Sheath Selector

Look up the liquid that you'll be heating and get recommendations on the best sheath materials to use.

Below, you'll find links to the 3" screwplug heaters we have available for online purchase here at OEMHeaters.com. When you find one that fits your needs with regards to sheath material, power (watts), and length, you'll be able to specify its operating voltage and the type of junction box prior to checkout.  If you don't find exactly what you need, don't despair. Screwplug immersion heaters can be built to your exact requirements in as little as two days. To get a fast quote, you can use our Immersion Heater Configurator, or you can also send us an e-mail, fill out one of our contact forms, or give us a call at (866) 685-4443. We're here to help you figure it out.

If you're not sure about the immersion heater you need and you want to learn more about immersion heater sizing and selection, you can check out the box on this page for our articles and tools to help you choose the right heater for your application.