Description
The BASO Gas Products K19AT-48 is a Super Slim Jim Universal Replacement Thermocouple engineered for reliable performance in standing pilot ignition systems. Its slim-profile design and spring clip mounting make it a versatile, drop-in replacement across a wide range of gas-fired appliances, including furnaces, boilers, water heaters, and fireplaces.
Product Overview
Thermocouples are a critical safety component in standing pilot ignition systems. When the pilot flame is present, the thermocouple generates a small millivolt signal that holds the gas valve open. If the pilot goes out, the signal drops and the gas valve closes automatically, preventing unburned gas from accumulating. The K19AT-48’s universal design simplifies service calls by reducing the need to stock multiple part numbers.
Key Features
- Super Slim Jim universal replacement design for broad cross-application compatibility
- Spring clip mounting for fast, tool-free installation
- 25–35 mV open circuit output range
- 48-inch lead length for flexible routing in tight or deep appliance cabinets
- Designed for use in standing pilot ignition systems
- Compatible with a wide range of gas-fired heating appliances
Specifications
- Brand: BASO Gas Products
- SKU / Part Number: K19AT-48
- Type: Universal Replacement Thermocouple
- Series: Super Slim Jim
- Mounting Style: Spring Clip
- Open Circuit mV Range: 25–35 mV
- Lead Length: 48 inches
- Application: Standing Pilot Ignition Systems
Application
The K19AT-48 is ideal for HVAC technicians and service professionals performing maintenance or emergency replacements on gas furnaces, boilers, water heaters, and other standing pilot appliances. The 48-inch lead length provides ample reach for most residential and light commercial installations, while the spring clip connection ensures a secure, vibration-resistant fit at the pilot burner assembly.







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