Description
Sensus-Gas Division Blue Spring — Part No. 143-16-021-04
The Sensus-Gas Division 143-16-021-04 is a genuine OEM blue spring designed as a direct replacement component for Sensus 243-12 and 121-12 series gas regulators. Using authentic Sensus replacement parts ensures your regulator maintains proper set-point accuracy, consistent outlet pressure control, and long-term operational reliability.
Key Features
- Genuine OEM Sensus-Gas Division replacement spring
- Color-coded blue for easy identification and correct installation
- Designed for use with Sensus 243-12 and 121-12 gas regulators
- Ensures accurate pressure regulation and consistent performance
- Direct drop-in replacement — no modifications required
- Supports proper regulator set-point and outlet pressure control
Compatible Models
- Sensus 243-12 Gas Regulator
- Sensus 121-12 Gas Regulator
Why Use Genuine OEM Parts?
Using factory-specified replacement springs like the Sensus 143-16-021-04 helps maintain the integrity of your gas regulator’s pressure-setting mechanism. Aftermarket or incorrect springs can alter outlet pressure calibration, leading to unsafe or non-compliant operation. Always specify the correct color-coded spring for your regulator model during service or rebuild procedures.







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