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CALCULATORS/SLIDE RULES

CALCULATORS/SLIDE RULES

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  1. SMACNA Duct System Calculator
    SMACNA Duct System Calculator
    Special Price $53.95 Regular Price $59.95
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  2. SuperCool Slide Rule Duct Calculator Flex Metal Ductulator Chart
    SuperCool Slide Rule Duct Calculator Flex Metal Ductulator Chart
    Special Price $17.95 Regular Price $19.95
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  3. Sheet Metal/HVAC Pro Calculator
    Sheet Metal/HVAC Pro Calculator
    Special Price $80.95 Regular Price $89.95
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