CALCULATORS/SLIDE RULES
FEATURING OUR BEST SELLER: SCHEDULING WHEEL CHART
Circuit Setter Valve Balance Procedure Calculator & Instruction BookSpecial Price $26.95 Regular Price $29.95Quickview-
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- Stone, Concrete, Asphalt Aggregate Slide Rule CalculatorSpecial Price $8.95 Regular Price $9.95Quickview
- Concrete & Masonry Materials Estimator - Slide RuleSpecial Price $8.95 Regular Price $9.95Quickview
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- Ductulator trane- Duct Sizing Calculator, English & Metric UnitsSpecial Price $24.25 Regular Price $26.95Quickview
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- SuperCool Slide Rule Duct Calculator Flex Metal Ductulator ChartSpecial Price $17.95 Regular Price $19.95Quickview
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- Structural Steel Detail Slide by Piping SelectorSpecial Price $22.45 Regular Price $24.95Quickview
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- 2021 UPC Water Pipe System Sizing Calculator, IAPMOSpecial Price $17.95 Regular Price $19.95Quickview
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- 2021 Drain Waste Vent Pipe Sizing Calculator, IAPMOSpecial Price $17.95 Regular Price $19.95Quickview
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- POCKET SERVICE CARD (RESIDENTIAL) For HCFC-22 SystemsSpecial Price $3.55 Regular Price $3.95Quickview
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- Westcott Metric Triangular Scale 12.5in White (TS-659)Special Price $12.15 Regular Price $13.50Quickview
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- 2015 Drain Waste Vent Pipe Sizing Calculator, IAPMOSpecial Price $17.95 Regular Price $19.95Quickview
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- Scale Master Pro XE Multi-Scale Digital Estimating ToolSpecial Price $99.85 Regular Price $110.95Quickview
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- Construction Master Pro Trig: Feet-Inch-Fraction Calculator with Built-In Trig. Functions.Special Price $99.85 Regular Price $110.95Quickview
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- ElectriCalc Pro: Electrical Problem-Solving CalculatorSpecial Price $99.85 Regular Price $110.95Quickview
- Pipe Trades Pro Advanced Pipe Trades Math CalculatorSpecial Price $89.95 Regular Price $99.95Quickview
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- Measure Master Pro Feet-Inch-Fraction Calculator, Calculated IndustriesSpecial Price $35.95 Regular Price $39.95Quickview
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