Description
Watlow 304172-002 Immersion Heater 208V 435W 117V 137W Cartridge Heater
The Watlow 304172-002 is a single-element immersion heater designed for direct liquid or process heating applications. It features a stainless steel heating rod, a threaded mounting fitting for installation into tanks, pipes, or vessels, and bare-end lead wires for field wiring. It is rated for dual-voltage operation — 435W at 208V or 137W at 117V — providing flexibility across different supply voltages.
Specifications & What's Included
- Manufacturer: Watlow Electric
- Part Number: 304172-002
- Type: Immersion / Cartridge Heater
- Voltage: 208V AC or 117V AC
- Wattage: 435W (at 208V) / 137W (at 117V)
- Sheath: Stainless steel rod
- Mounting: Threaded hex fitting
- Leads: Two bare-end lead wires, approximately 12 inches in length
- Heater only — no mounting hardware or accessories included
Applications
Watlow immersion heaters like the 304172-002 are used to heat liquids, gases, or process media directly within tanks, vessels, pipes, and small reservoirs. They are common in industrial process equipment, laboratory heating baths, semiconductor process chambers, chemical processing systems, and HVAC/fluid conditioning equipment. The threaded fitting allows direct installation into a tapped port or fitting on a tank or pipe wall. Watlow is a well-established U.S. manufacturer of electric heating elements, temperature sensors, and thermal systems, and their immersion heaters are widely used across industrial and scientific applications. The dual-voltage rating makes this element useful in both 120V and 208V electrical environments.
This Watlow 304172-002 Immersion Heater has been inspected and appears to be in good used condition. It was pulled from a working environment where it was previously in service. The stainless steel heating rod shows light surface wear consistent with normal use, and the lead wires and threaded fitting appear intact with no visible damage. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Watlow |
Model: |
304172-002 |
MPN: |
304172-002 |
Type: |
Immersion Heater |
SKU: |
32240 |
Voltage Rating: |
208V or 117V |
Power Rating: |
435W (208V) / 137W (117V) |
Wattage: |
435W at 208V; 137W at 117V |
Heater Style: |
Cartridge / Immersion Rod |
Mounting: |
Threaded fitting |
Lead Wire: |
Two bare-end lead wires |
Sheath Material: |
Stainless Steel |
Seller Notes: |
Heater only — no mounting hardware or accessories included. |
Country/Region of Manufacture: |
United States |
Condition Notes: |
This Watlow 304172-002 Immersion Heater has been inspected and is in good used condition. Pulled from a working environment. Rod shows light wear; lead wires and threaded fitting appear intact. Please contact us with any questions. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |
