This durable two-sided plastic sizing wheel comes with a complete instruction manual for residential and commercial duct-sizing procedures. Designed by Hank Rutkowski.

Buy Now From Amazon

This durable two-sided plastic sizing wheel comes with a complete instruction manual for residential and commercial duct-sizing procedures. Designed by Hank Rutkowski.

Similar Products

Modern Refrigeration and Air Conditioning (Modern Refridgeration and Air Conditioning)2012 International Mechanical Code (International Code Council Series)Manual J Residential Load Calculation (8th Edition - Full)Manual D - Residential Duct Systems2015 International Mechanical CodeResidential Load Calculation Manual J®, Eighth Edition, Version 2.50Commercial Load Calculation for Small Commercial Buildings, Manual N®OSHA Construction Standards and Regulations (29 CFR 1926)