This kit is the standard for Series N223B and N223BS regulators

Durable Construction: Built with a compact

it requires a physical inspection of the combustion system by a technician before the unit can be returned to service

ensuring NIST traceable reliability for critical HVACR balancing and commissioning

making it ideal for the demanding duty cycles of commercial fan drives and pump systems

Browning H 1/2 Bushing 322056-301 This kit is the standardThe Browning H 1 2 Split Taper Bushing is a high performance power transmission component designed for precision mounting of sheaves, pulleys, and sprockets onto a 1 2 inch diameter shaft. Engineered with a double split barrel, this H series bushing ensures a concentric grip on the shaft, significantly reducing vibration and preventing shaft marring compared to standard set screw hubs. The 1 8" x 1 16" keyseat provides a secure mechanical interface