Westinghouse 140565 - High Altitude Regulator Conversion For units before build date 0719 on the serial # contains 4 jets #3.9= 6K to 7K #4.0= 5K to 6K #4.1= 3K to 5K #4.2= 2K to 3K
For units before build date 0719 on the serial #
contains 4 jets
#3.9= 6K to 7K
#4.0= 5K to 6K
#4.1= 3K to 5K
#4.2= 2K to 3K