Add to Cart Quick view Physical Electronics Inc. PHI Model 20-025 Sample Heater Control Physical Electronics Inc. Was: $139.00 Was: $325.00 Physical Electronics Inc. PHI Model 20-025 Sample Heater Control w/ Voltage and Current Controls Condition: UsedThis item has been inspected and it is in good condition. 34977 SKU: 34977 Weight: 25.00 LBS