Small Tank Applications
UL/CSA Certification

Small Tank Applications
UL/CSA Certification
  • 1/2 and 3/4" NPT Brass or Stainless Steel Screw Plug
  • INCOLOY® or Stainless Steel Sheath Element
  • 20 - 36 W/In2
  • 100 - 1,000 Watts
  • 120 and 240 Volt, Single Phase
  • Integral Plug and Receptacle
  • CSA

Screw Plug Immersion heaters consist of hairpin bent tubular elements brazed or welded into a screw plug, and provided with terminal enclosures for electrical connections. Chromalox RI industrial heaters use direct immersion for energy efficiency, and are well suited for water heating and small tank applications.


  • Water Heating
  • Mild Corrosive Solution Heating
  • Light Weight Oil Heating (type RIO)
  • De-ionized Water Heating (type RIS)

Select Parameters
Dim. A (ref. drawing image above)
Dim. B (ref. drawing image above)
Dim. C (ref. drawing image above)
Sheath Material
Clear Parameters
Select a Part
Part # Description  
138528 RI-100 120V 100W Buy Now
138536 RI-250 240V 250W Buy Now
138544 RI-250 120V 250W Buy Now
138552 RI-750 120V 750W Buy Now
138560 RI-1300 240V1P 300W Buy Now
138579 RI-1300 120V 300W Buy Now
138587 RI-1500 240V 500W Buy Now
138595 RI-1500 120V 500W Buy Now
138608 RI-1750 240V 750W Buy Now
138616 RI-1750 120V 750W Buy Now
138632 RI-1100 240V 1000W Buy Now
138640 RI-1100 120V 1000W Buy Now
138659 RI-750 240V 750W Buy Now
138667 RI-500 240V 500W Buy Now
138675 RI-500 120V 500W Buy Now
Can't find what you're looking for?