Portable HVAC Quick Reference Cards – Essential Tool for Refrigerant Charging
Accurate Calculations: Leverage the Refrigerant Weight Chart to calculate the required amount of refrigerant per foot of tubing. Essential Tool for Refrigerant Charging. Portable HVAC Quick Reference Cards.
100 Latin & Greek Roots Flashcards; English From The Roots Up Vol 1; Lundquist
Author: Joégil K. Lundquist. This highly regarded curriculum tool features 100 Latin and Greek root word cards designed to drastically improve reading comprehension, vocabulary, spelling, and standardized test preparation (like the SAT/ACT).