The CW (clockwise) rotation is critical for maintaining correct static pressure and heat exchange efficiency in Trane and American Standard equipment

The package includes a LP conversion kit and multiple reducer bushings (3/4" x 1/2" and 1/2" x 3/8")

Technician-Ready Design: Features standard lead configurations and mounting dimensions to minimize downtime during field swaps

Professional installation is recommended to calibrate the differential pressure sensing and maintain optimal efficiency in high-demand heating environments

BASO H43AA-12 Gas Valve Freon The CW (clockwise) rotation isThe BASO H43AA 12 Pilot Valve is a 3 8" NPT automatic shut off gas valve designed for mission critical safety in commercial and residential heating systems. Engineering for versatile application, this Baso H43 pilot valve handles both Natural Gas and Liquid Propane (LP) at pressures up to 0. 5 PSI. A defining mechanical feature is the 1 4" compression coupling pilot tap located on the right side, which provides an opposite gas flow configuration