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$13.00$25.00
Specifications for Fluorocarbons and Other Refrigerants..
$10.00 $20.00
Performance Rating of Central System Humidifiers for Residential Applications..
$15.00 $30.00
Performance Rating of Liquid-Line Driers..
$13.00 $25.00
Performance Rating of Commercial and Industrial Air Filter Equipment (SI) (AHRI)..