Screw Plug 2″ NPT Immersion Heater
Alloy Sheath w/ Stainless Steel Screw plug – Welded
30 watts per square inch with thermowell
3/8″ ID Stainless Steel Thermowell
Regulated
Alloy Sheath w/ Brass Steel Screw plug – Silver Brazed
For Corrosive Water Applications
50 watts per square inch with thermowell
3/8″ ID Stainless Steel Thermowell
General Purpose and Moisture/Explosion Resistant Enclosures
Nema Type 1, 4, 4X, & 9
reference pages 7 – 8